Add PPOCRLabel

PPOCRLabel/libs/settings.py

+# Copyright (c) <2015-Present> Tzutalin
+# Copyright (C) 2013  MIT, Computer Science and Artificial Intelligence Laboratory. Bryan Russell, Antonio Torralba,
+# William T. Freeman. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+# associated documentation files (the "Software"), to deal in the Software without restriction, including without
+# limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+# Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+# The above copyright notice and this permission notice shall be included in all copies or substantial portions of
+# the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+# NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+import pickle
+import os
+import sys
+
+
+class Settings(object):
+    def __init__(self):
+        # Be default, the home will be in the same folder as labelImg
+        home = os.path.expanduser("~")
+        self.data = {}
+        # self.path = os.path.join(home, '.labelImgSettings.pkl')
+        self.path = os.path.join(home, '.autoOCRSettings.pkl')
+
+    def __setitem__(self, key, value):
+        self.data[key] = value
+
+    def __getitem__(self, key):
+        return self.data[key]
+
+    def get(self, key, default=None):
+        if key in self.data:
+            return self.data[key]
+        return default
+
+    def save(self):
+        if self.path:
+            with open(self.path, 'wb') as f:
+                pickle.dump(self.data, f, pickle.HIGHEST_PROTOCOL)
+                return True
+        return False
+
+    def load(self):
+        try:
+            if os.path.exists(self.path):
+                with open(self.path, 'rb') as f:
+                    self.data = pickle.load(f)
+                    return True
+        except:
+            print('Loading setting failed')
+        return False
+
+    def reset(self):
+        if os.path.exists(self.path):
+            os.remove(self.path)
+            print('Remove setting pkl file ${0}'.format(self.path))
+        self.data = {}
+        self.path = None

PPOCRLabel/libs/shape.py

+# Copyright (c) <2015-Present> Tzutalin
+# Copyright (C) 2013  MIT, Computer Science and Artificial Intelligence Laboratory. Bryan Russell, Antonio Torralba,
+# William T. Freeman. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+# associated documentation files (the "Software"), to deal in the Software without restriction, including without
+# limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+# Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+# The above copyright notice and this permission notice shall be included in all copies or substantial portions of
+# the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+# NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+
+try:
+    from PyQt5.QtGui import *
+    from PyQt5.QtCore import *
+except ImportError:
+    from PyQt4.QtGui import *
+    from PyQt4.QtCore import *
+
+from libs.utils import distance
+import sys
+
+DEFAULT_LINE_COLOR = QColor(0, 255, 0, 128)
+DEFAULT_FILL_COLOR = QColor(255, 0, 0, 128)
+DEFAULT_SELECT_LINE_COLOR = QColor(255, 255, 255)
+DEFAULT_SELECT_FILL_COLOR = QColor(0, 128, 255, 155)
+DEFAULT_VERTEX_FILL_COLOR = QColor(0, 255, 0, 255)
+DEFAULT_HVERTEX_FILL_COLOR = QColor(255, 0, 0)
+MIN_Y_LABEL = 10
+
+
+class Shape(object):
+    P_SQUARE, P_ROUND = range(2)
+
+    MOVE_VERTEX, NEAR_VERTEX = range(2)
+
+    # The following class variables influence the drawing
+    # of _all_ shape objects.
+    line_color = DEFAULT_LINE_COLOR
+    fill_color = DEFAULT_FILL_COLOR
+    select_line_color = DEFAULT_SELECT_LINE_COLOR
+    select_fill_color = DEFAULT_SELECT_FILL_COLOR
+    vertex_fill_color = DEFAULT_VERTEX_FILL_COLOR
+    hvertex_fill_color = DEFAULT_HVERTEX_FILL_COLOR
+    point_type = P_ROUND
+    point_size = 8
+    scale = 1.0
+
+    def __init__(self, label=None, line_color=None, difficult=False, paintLabel=False):
+        self.label = label
+        self.points = []
+        self.fill = False
+        self.selected = False
+        self.difficult = difficult
+        self.paintLabel = paintLabel
+
+        self._highlightIndex = None
+        self._highlightMode = self.NEAR_VERTEX
+        self._highlightSettings = {
+            self.NEAR_VERTEX: (4, self.P_ROUND),
+            self.MOVE_VERTEX: (1.5, self.P_SQUARE),
+        }
+
+        self._closed = False
+
+        if line_color is not None:
+            # Override the class line_color attribute
+            # with an object attribute. Currently this
+            # is used for drawing the pending line a different color.
+            self.line_color = line_color
+
+    def close(self):
+        self._closed = True
+
+    def reachMaxPoints(self):
+        if len(self.points) >= 4:
+            return True
+        return False
+
+    def addPoint(self, point):
+        if not self.reachMaxPoints():
+            self.points.append(point)
+
+    def popPoint(self):
+        if self.points:
+            return self.points.pop()
+        return None
+
+    def isClosed(self):
+        return self._closed
+
+    def setOpen(self):
+        self._closed = False
+
+    def paint(self, painter):
+        if self.points:
+            color = self.select_line_color if self.selected else self.line_color
+            pen = QPen(color)
+            # Try using integer sizes for smoother drawing(?)
+            pen.setWidth(max(1, int(round(2.0 / self.scale))))
+            painter.setPen(pen)
+
+            line_path = QPainterPath()
+            vrtx_path = QPainterPath()
+
+            line_path.moveTo(self.points[0])
+            # Uncommenting the following line will draw 2 paths
+            # for the 1st vertex, and make it non-filled, which
+            # may be desirable.
+            #self.drawVertex(vrtx_path, 0)
+
+            for i, p in enumerate(self.points):
+                line_path.lineTo(p)
+                self.drawVertex(vrtx_path, i)
+            if self.isClosed():
+                line_path.lineTo(self.points[0])
+
+            painter.drawPath(line_path)
+            painter.drawPath(vrtx_path)
+            painter.fillPath(vrtx_path, self.vertex_fill_color)
+
+            # Draw text at the top-left
+            if self.paintLabel:
+                min_x = sys.maxsize
+                min_y = sys.maxsize
+                for point in self.points:
+                    min_x = min(min_x, point.x())
+                    min_y = min(min_y, point.y())
+                if min_x != sys.maxsize and min_y != sys.maxsize:
+                    font = QFont()
+                    font.setPointSize(8)
+                    font.setBold(True)
+                    painter.setFont(font)
+                    if(self.label == None):
+                        self.label = ""
+                    if(min_y < MIN_Y_LABEL):
+                        min_y += MIN_Y_LABEL
+                    painter.drawText(min_x, min_y, self.label)
+
+            if self.fill:
+                color = self.select_fill_color if self.selected else self.fill_color
+                painter.fillPath(line_path, color)
+
+    def drawVertex(self, path, i):
+        d = self.point_size / self.scale
+        shape = self.point_type
+        point = self.points[i]
+        if i == self._highlightIndex:
+            size, shape = self._highlightSettings[self._highlightMode]
+            d *= size
+        if self._highlightIndex is not None:
+            self.vertex_fill_color = self.hvertex_fill_color
+        else:
+            self.vertex_fill_color = Shape.vertex_fill_color
+        if shape == self.P_SQUARE:
+            path.addRect(point.x() - d / 2, point.y() - d / 2, d, d)
+        elif shape == self.P_ROUND:
+            path.addEllipse(point, d / 2.0, d / 2.0)
+        else:
+            assert False, "unsupported vertex shape"
+
+    def nearestVertex(self, point, epsilon):
+        for i, p in enumerate(self.points):
+            if distance(p - point) <= epsilon:
+                return i
+        return None
+
+    def containsPoint(self, point):
+        return self.makePath().contains(point)
+
+    def makePath(self):
+        path = QPainterPath(self.points[0])
+        for p in self.points[1:]:
+            path.lineTo(p)
+        return path
+
+    def boundingRect(self):
+        return self.makePath().boundingRect()
+
+    def moveBy(self, offset):
+        self.points = [p + offset for p in self.points]
+
+    def moveVertexBy(self, i, offset):
+        self.points[i] = self.points[i] + offset
+
+    def highlightVertex(self, i, action):
+        self._highlightIndex = i
+        self._highlightMode = action
+
+    def highlightClear(self):
+        self._highlightIndex = None
+
+    def copy(self):
+        shape = Shape("%s" % self.label)
+        shape.points = [p for p in self.points]
+        shape.fill = self.fill
+        shape.selected = self.selected
+        shape._closed = self._closed
+        if self.line_color != Shape.line_color:
+            shape.line_color = self.line_color
+        if self.fill_color != Shape.fill_color:
+            shape.fill_color = self.fill_color
+        shape.difficult = self.difficult
+        return shape
+
+    def __len__(self):
+        return len(self.points)
+
+    def __getitem__(self, key):
+        return self.points[key]
+
+    def __setitem__(self, key, value):
+        self.points[key] = value

PPOCRLabel/libs/stringBundle.py

+# Copyright (c) <2015-Present> Tzutalin
+# Copyright (C) 2013  MIT, Computer Science and Artificial Intelligence Laboratory. Bryan Russell, Antonio Torralba,
+# William T. Freeman. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+# associated documentation files (the "Software"), to deal in the Software without restriction, including without
+# limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+# Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+# The above copyright notice and this permission notice shall be included in all copies or substantial portions of
+# the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+# NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+import re
+import os
+import sys
+import locale
+from libs.ustr import ustr
+
+try:
+    from PyQt5.QtCore import *
+except ImportError:
+    if sys.version_info.major >= 3:
+        import sip
+        sip.setapi('QVariant', 2)
+    from PyQt4.QtCore import *
+
+
+class StringBundle:
+
+    __create_key = object()
+
+    def __init__(self, create_key, localeStr):
+        assert(create_key == StringBundle.__create_key), "StringBundle must be created using StringBundle.getBundle"
+        self.idToMessage = {}
+        paths = self.__createLookupFallbackList(localeStr)
+        for path in paths:
+            self.__loadBundle(path)
+
+    @classmethod
+    def getBundle(cls, localeStr=None):
+        if localeStr is None:
+            try:
+                localeStr = locale.getlocale()[0] if locale.getlocale() and len(
+                    locale.getlocale()) > 0 else os.getenv('LANG')
+            except:
+                print('Invalid locale')
+                localeStr = 'en'
+
+        return StringBundle(cls.__create_key, localeStr)
+
+    def getString(self, stringId):
+        assert(stringId in self.idToMessage), "Missing string id : " + stringId
+        return self.idToMessage[stringId]
+
+    def __createLookupFallbackList(self, localeStr):
+        resultPaths = []
+        basePath = ":/strings"
+        resultPaths.append(basePath)
+        if localeStr is not None:
+            # Don't follow standard BCP47. Simple fallback
+            tags = re.split('[^a-zA-Z]', localeStr)
+            for tag in tags:
+                lastPath = resultPaths[-1]
+                resultPaths.append(lastPath + '-' + tag)
+
+        return resultPaths
+
+    def __loadBundle(self, path):
+        PROP_SEPERATOR = '='
+        f = QFile(path)
+        if f.exists():
+            if f.open(QIODevice.ReadOnly | QFile.Text):
+                text = QTextStream(f)
+                text.setCodec("UTF-8")
+
+            while not text.atEnd():
+                line = ustr(text.readLine())
+                key_value = line.split(PROP_SEPERATOR)
+                key = key_value[0].strip()
+                value = PROP_SEPERATOR.join(key_value[1:]).strip().strip('"')
+                self.idToMessage[key] = value
+
+            f.close()

PPOCRLabel/libs/toolBar.py

+# Copyright (c) <2015-Present> Tzutalin
+# Copyright (C) 2013  MIT, Computer Science and Artificial Intelligence Laboratory. Bryan Russell, Antonio Torralba,
+# William T. Freeman. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+# associated documentation files (the "Software"), to deal in the Software without restriction, including without
+# limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+# Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+# The above copyright notice and this permission notice shall be included in all copies or substantial portions of
+# the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+# NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+try:
+    from PyQt5.QtGui import *
+    from PyQt5.QtCore import *
+    from PyQt5.QtWidgets import *
+except ImportError:
+    from PyQt4.QtGui import *
+    from PyQt4.QtCore import *
+
+
+class ToolBar(QToolBar):
+
+    def __init__(self, title):
+        super(ToolBar, self).__init__(title)
+        layout = self.layout()
+        m = (0, 0, 0, 0)
+        layout.setSpacing(0)
+        layout.setContentsMargins(*m)
+        self.setContentsMargins(*m)
+        self.setWindowFlags(self.windowFlags() | Qt.FramelessWindowHint)
+
+    def addAction(self, action):
+        if isinstance(action, QWidgetAction):
+            return super(ToolBar, self).addAction(action)
+        btn = ToolButton()
+        btn.setDefaultAction(action)
+        btn.setToolButtonStyle(self.toolButtonStyle())
+        self.addWidget(btn)
+
+
+class ToolButton(QToolButton):
+    """ToolBar companion class which ensures all buttons have the same size."""
+    minSize = (60, 60)
+
+    def minimumSizeHint(self):
+        ms = super(ToolButton, self).minimumSizeHint()
+        w1, h1 = ms.width(), ms.height()
+        w2, h2 = self.minSize
+        ToolButton.minSize = max(w1, w2), max(h1, h2)
+        return QSize(*ToolButton.minSize)

PPOCRLabel/libs/ustr.py

+# Copyright (c) <2015-Present> Tzutalin
+# Copyright (C) 2013  MIT, Computer Science and Artificial Intelligence Laboratory. Bryan Russell, Antonio Torralba,
+# William T. Freeman. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+# associated documentation files (the "Software"), to deal in the Software without restriction, including without
+# limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+# Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+# The above copyright notice and this permission notice shall be included in all copies or substantial portions of
+# the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+# NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+import sys
+from libs.constants import DEFAULT_ENCODING
+
+def ustr(x):
+    '''py2/py3 unicode helper'''
+
+    if sys.version_info < (3, 0, 0):
+        from PyQt4.QtCore import QString
+        if type(x) == str:
+            return x.decode(DEFAULT_ENCODING)
+        if type(x) == QString:
+            #https://blog.csdn.net/friendan/article/details/51088476
+            #https://blog.csdn.net/xxm524/article/details/74937308
+            return unicode(x.toUtf8(), DEFAULT_ENCODING, 'ignore')
+        return x
+    else:
+        return x

PPOCRLabel/libs/utils.py

+# Copyright (c) <2015-Present> Tzutalin
+# Copyright (C) 2013  MIT, Computer Science and Artificial Intelligence Laboratory. Bryan Russell, Antonio Torralba,
+# William T. Freeman. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+# associated documentation files (the "Software"), to deal in the Software without restriction, including without
+# limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+# Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+# The above copyright notice and this permission notice shall be included in all copies or substantial portions of
+# the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+# NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+from math import sqrt
+from libs.ustr import ustr
+import hashlib
+import re
+import sys
+import cv2
+import numpy as np
+
+try:
+    from PyQt5.QtGui import *
+    from PyQt5.QtCore import *
+    from PyQt5.QtWidgets import *
+except ImportError:
+    from PyQt4.QtGui import *
+    from PyQt4.QtCore import *
+
+
+def newIcon(icon, iconSize=None):
+    if iconSize is not None:
+        return QIcon(QIcon(':/' + icon).pixmap(iconSize,iconSize))
+    else:
+        return QIcon(':/' + icon)
+
+
+def newButton(text, icon=None, slot=None):
+    b = QPushButton(text)
+    if icon is not None:
+        b.setIcon(newIcon(icon))
+    if slot is not None:
+        b.clicked.connect(slot)
+    return b
+
+
+def newAction(parent, text, slot=None, shortcut=None, icon=None,
+              tip=None, checkable=False, enabled=True, iconSize=None):
+    """Create a new action and assign callbacks, shortcuts, etc."""
+    a = QAction(text, parent)
+    if icon is not None:
+        if iconSize is not None:
+            a.setIcon(newIcon(icon, iconSize))
+        else:
+            a.setIcon(newIcon(icon))
+    if shortcut is not None:
+        if isinstance(shortcut, (list, tuple)):
+            a.setShortcuts(shortcut)
+        else:
+            a.setShortcut(shortcut)
+    if tip is not None:
+        a.setToolTip(tip)
+        a.setStatusTip(tip)
+    if slot is not None:
+        a.triggered.connect(slot)
+    if checkable:
+        a.setCheckable(True)
+    a.setEnabled(enabled)
+    return a
+
+
+def addActions(widget, actions):
+    for action in actions:
+        if action is None:
+            widget.addSeparator()
+        elif isinstance(action, QMenu):
+            widget.addMenu(action)
+        else:
+            widget.addAction(action)
+
+
+def labelValidator():
+    return QRegExpValidator(QRegExp(r'^[^ \t].+'), None)
+
+
+class struct(object):
+
+    def __init__(self, **kwargs):
+        self.__dict__.update(kwargs)
+
+
+def distance(p):
+    return sqrt(p.x() * p.x() + p.y() * p.y())
+
+
+def fmtShortcut(text):
+    mod, key = text.split('+', 1)
+    return '<b>%s</b>+<b>%s</b>' % (mod, key)
+
+
+def generateColorByText(text):
+    s = ustr(text)
+    hashCode = int(hashlib.sha256(s.encode('utf-8')).hexdigest(), 16)
+    r = int((hashCode / 255) % 255)
+    g = int((hashCode / 65025)  % 255)
+    b = int((hashCode / 16581375)  % 255)
+    return QColor(r, g, b, 100)
+
+def have_qstring():
+    '''p3/qt5 get rid of QString wrapper as py3 has native unicode str type'''
+    return not (sys.version_info.major >= 3 or QT_VERSION_STR.startswith('5.'))
+
+def util_qt_strlistclass():
+    return QStringList if have_qstring() else list
+
+def natural_sort(list, key=lambda s:s):
+    """
+    Sort the list into natural alphanumeric order.
+    """
+    def get_alphanum_key_func(key):
+        convert = lambda text: int(text) if text.isdigit() else text
+        return lambda s: [convert(c) for c in re.split('([0-9]+)', key(s))]
+    sort_key = get_alphanum_key_func(key)
+    list.sort(key=sort_key)
+
+
+def get_rotate_crop_image(img, points):
+
+    try:
+        img_crop_width = int(
+            max(
+                np.linalg.norm(points[0] - points[1]),
+                np.linalg.norm(points[2] - points[3])))
+        img_crop_height = int(
+            max(
+                np.linalg.norm(points[0] - points[3]),
+                np.linalg.norm(points[1] - points[2])))
+        pts_std = np.float32([[0, 0], [img_crop_width, 0],
+                              [img_crop_width, img_crop_height],
+                              [0, img_crop_height]])
+        M = cv2.getPerspectiveTransform(points, pts_std)
+        dst_img = cv2.warpPerspective(
+            img,
+            M, (img_crop_width, img_crop_height),
+            borderMode=cv2.BORDER_REPLICATE,
+            flags=cv2.INTER_CUBIC)
+        dst_img_height, dst_img_width = dst_img.shape[0:2]
+        if dst_img_height * 1.0 / dst_img_width >= 1.5:
+            dst_img = np.rot90(dst_img)
+        return dst_img
+    except Exception as e:
+        print(e)
+
+def stepsInfo(lang='en'):
+    if lang == 'ch':
+        msg = "1. 安装与运行：使用上述命令安装与运行程序。\n" \
+              "2. 打开文件夹：在菜单栏点击 “文件” - 打开目录 选择待标记图片的文件夹.\n"\
+              "3. 自动标注：点击 ”自动标注“，使用PPOCR超轻量模型对图片文件名前图片状态为 “X” 的图片进行自动标注。\n" \
+              "4. 手动标注：点击 “矩形标注”（推荐直接在英文模式下点击键盘中的 “W”)，用户可对当前图片中模型未检出的部分进行手动" \
+              "绘制标记框。点击键盘P，则使用四点标注模式（或点击“编辑” - “四点标注”），用户依次点击4个点后，双击左键表示标注完成。\n" \
+              "5. 标记框绘制完成后，用户点击 “确认”，检测框会先被预分配一个 “待识别” 标签。\n" \
+              "6. 重新识别：将图片中的所有检测画绘制/调整完成后，点击 “重新识别”，PPOCR模型会对当前图片中的**所有检测框**重新识别。\n" \
+              "7. 内容更改：双击识别结果，对不准确的识别结果进行手动更改。\n" \
+              "8. 保存：点击 “保存”，图片状态切换为 “√”，跳转至下一张。\n" \
+              "9. 删除：点击 “删除图像”，图片将会被删除至回收站。\n" \
+              "10. 标注结果：关闭应用程序或切换文件路径后，手动保存过的标签将会被存放在所打开图片文件夹下的" \
+              "*Label.txt*中。在菜单栏点击 “PaddleOCR” - 保存识别结果后，会将此类图片的识别训练数据保存在*crop_img*文件夹下，" \
+              "识别标签保存在*rec_gt.txt*中。\n"
+    else:
+        msg = "1. Build and launch using the instructions above.\n" \
+              "2. Click 'Open Dir' in Menu/File to select the folder of the picture.\n"\
+              "3. Click 'Auto recognition', use PPOCR model to automatically annotate images which marked with 'X' before the file name."\
+              "4. Create Box:\n"\
+                   "4.1 Click 'Create RectBox' or press 'W' in English keyboard mode to draw a new rectangle detection box. Click and release left mouse to select a region to annotate the text area.\n"\
+                   "4.2 Press 'P' to enter four-point labeling mode which enables you to create any four-point shape by clicking four points with the left mouse button in succession and DOUBLE CLICK the left mouse as the signal of labeling completion.\n"\
+              "5. After the marking frame is drawn, the user clicks 'OK', and the detection frame will be pre-assigned a TEMPORARY label.\n"\
+              "6. Click re-Recognition, model will rewrite ALL recognition results in ALL detection box.\n"\
+              "7. Double click the result in 'recognition result' list to manually change inaccurate recognition results.\n"\
+              "8. Click 'Save', the image status will switch to '√',then the program automatically jump to the next.\n"\
+              "9. Click 'Delete Image' and the image will be deleted to the recycle bin.\n"\
+              "10. Labeling result: After closing the application or switching the file path, the manually saved label will be stored in *Label.txt* under the opened picture folder.\n"\
+              "    Click PaddleOCR-Save Recognition Results in the menu bar, the recognition training data of such pictures will be saved in the *crop_img* folder, and the recognition label will be saved in *rec_gt.txt*.\n"
+    return msg
\ No newline at end of file

PPOCRLabel/libs/yolo_io.py

+#!/usr/bin/env python
+# -*- coding: utf8 -*-
+import sys
+import os
+from xml.etree import ElementTree
+from xml.etree.ElementTree import Element, SubElement
+from lxml import etree
+import codecs
+from libs.constants import DEFAULT_ENCODING
+
+TXT_EXT = '.txt'
+ENCODE_METHOD = DEFAULT_ENCODING
+
+class YOLOWriter:
+
+    def __init__(self, foldername, filename, imgSize, databaseSrc='Unknown', localImgPath=None):
+        self.foldername = foldername
+        self.filename = filename
+        self.databaseSrc = databaseSrc
+        self.imgSize = imgSize
+        self.boxlist = []
+        self.localImgPath = localImgPath
+        self.verified = False
+
+    def addBndBox(self, xmin, ymin, xmax, ymax, name, difficult):
+        bndbox = {'xmin': xmin, 'ymin': ymin, 'xmax': xmax, 'ymax': ymax}
+        bndbox['name'] = name
+        bndbox['difficult'] = difficult
+        self.boxlist.append(bndbox)
+
+    def BndBox2YoloLine(self, box, classList=[]):
+        xmin = box['xmin']
+        xmax = box['xmax']
+        ymin = box['ymin']
+        ymax = box['ymax']
+
+        xcen = float((xmin + xmax)) / 2 / self.imgSize[1]
+        ycen = float((ymin + ymax)) / 2 / self.imgSize[0]
+
+        w = float((xmax - xmin)) / self.imgSize[1]
+        h = float((ymax - ymin)) / self.imgSize[0]
+
+        # PR387
+        boxName = box['name']
+        if boxName not in classList:
+            classList.append(boxName)
+
+        classIndex = classList.index(boxName)
+
+        return classIndex, xcen, ycen, w, h
+
+    def save(self, classList=[], targetFile=None):
+
+        out_file = None #Update yolo .txt
+        out_class_file = None   #Update class list .txt
+
+        if targetFile is None:
+            out_file = open(
+            self.filename + TXT_EXT, 'w', encoding=ENCODE_METHOD)
+            classesFile = os.path.join(os.path.dirname(os.path.abspath(self.filename)), "classes.txt")
+            out_class_file = open(classesFile, 'w')
+
+        else:
+            out_file = codecs.open(targetFile, 'w', encoding=ENCODE_METHOD)
+            classesFile = os.path.join(os.path.dirname(os.path.abspath(targetFile)), "classes.txt")
+            out_class_file = open(classesFile, 'w')
+
+
+        for box in self.boxlist:
+            classIndex, xcen, ycen, w, h = self.BndBox2YoloLine(box, classList)
+            # print (classIndex, xcen, ycen, w, h)
+            out_file.write("%d %.6f %.6f %.6f %.6f\n" % (classIndex, xcen, ycen, w, h))
+
+        # print (classList)
+        # print (out_class_file)
+        for c in classList:
+            out_class_file.write(c+'\n')
+
+        out_class_file.close()
+        out_file.close()
+
+
+
+class YoloReader:
+
+    def __init__(self, filepath, image, classListPath=None):
+        # shapes type:
+        # [labbel, [(x1,y1), (x2,y2), (x3,y3), (x4,y4)], color, color, difficult]
+        self.shapes = []
+        self.filepath = filepath
+
+        if classListPath is None:
+            dir_path = os.path.dirname(os.path.realpath(self.filepath))
+            self.classListPath = os.path.join(dir_path, "classes.txt")
+        else:
+            self.classListPath = classListPath
+
+        # print (filepath, self.classListPath)
+
+        classesFile = open(self.classListPath, 'r')
+        self.classes = classesFile.read().strip('\n').split('\n')
+
+        # print (self.classes)
+
+        imgSize = [image.height(), image.width(),
+                      1 if image.isGrayscale() else 3]
+
+        self.imgSize = imgSize
+
+        self.verified = False
+        # try:
+        self.parseYoloFormat()
+        # except:
+            # pass
+
+    def getShapes(self):
+        return self.shapes
+
+    def addShape(self, label, xmin, ymin, xmax, ymax, difficult):
+
+        points = [(xmin, ymin), (xmax, ymin), (xmax, ymax), (xmin, ymax)]
+        self.shapes.append((label, points, None, None, difficult))
+
+    def yoloLine2Shape(self, classIndex, xcen, ycen, w, h):
+        label = self.classes[int(classIndex)]
+
+        xmin = max(float(xcen) - float(w) / 2, 0)
+        xmax = min(float(xcen) + float(w) / 2, 1)
+        ymin = max(float(ycen) - float(h) / 2, 0)
+        ymax = min(float(ycen) + float(h) / 2, 1)
+
+        xmin = int(self.imgSize[1] * xmin)
+        xmax = int(self.imgSize[1] * xmax)
+        ymin = int(self.imgSize[0] * ymin)
+        ymax = int(self.imgSize[0] * ymax)
+
+        return label, xmin, ymin, xmax, ymax
+
+    def parseYoloFormat(self):
+        bndBoxFile = open(self.filepath, 'r')
+        for bndBox in bndBoxFile:
+            classIndex, xcen, ycen, w, h = bndBox.strip().split(' ')
+            label, xmin, ymin, xmax, ymax = self.yoloLine2Shape(classIndex, xcen, ycen, w, h)
+
+            # Caveat: difficult flag is discarded when saved as yolo format.
+            self.addShape(label, xmin, ymin, xmax, ymax, False)

PPOCRLabel/libs/zoomWidget.py

+# Copyright (c) <2015-Present> Tzutalin
+# Copyright (C) 2013  MIT, Computer Science and Artificial Intelligence Laboratory. Bryan Russell, Antonio Torralba,
+# William T. Freeman. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+# associated documentation files (the "Software"), to deal in the Software without restriction, including without
+# limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+# Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+# The above copyright notice and this permission notice shall be included in all copies or substantial portions of
+# the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+# NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+try:
+    from PyQt5.QtGui import *
+    from PyQt5.QtCore import *
+    from PyQt5.QtWidgets import *
+except ImportError:
+    from PyQt4.QtGui import *
+    from PyQt4.QtCore import *
+
+
+class ZoomWidget(QSpinBox):
+
+    def __init__(self, value=100):
+        super(ZoomWidget, self).__init__()
+        self.setButtonSymbols(QAbstractSpinBox.NoButtons)
+        self.setRange(1, 500)
+        self.setSuffix(' %')
+        self.setValue(value)
+        self.setToolTip(u'Zoom Level')
+        self.setStatusTip(self.toolTip())
+        self.setAlignment(Qt.AlignCenter)
+
+    def minimumSizeHint(self):
+        height = super(ZoomWidget, self).minimumSizeHint().height()
+        fm = QFontMetrics(self.font())
+        width = fm.width(str(self.maximum()))
+        return QSize(width, height)

PPOCRLabel/requirements/requirements-linux-python3.txt

+pyqt5==5.10.1
+lxml==4.2.4

PPOCRLabel/resources.qrc

+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+
+<file alias="help">resources/icons/help.png</file>
+<file alias="app">resources/icons/app.png</file>
+<file alias="Auto">resources/icons/Auto.png</file>
+<file alias="reRec">resources/icons/reRec.png</file>
+<file alias="expert">resources/icons/expert2.png</file>
+<file alias="done">resources/icons/done.png</file>
+<file alias="file">resources/icons/file.png</file>
+<file alias="labels">resources/icons/labels.png</file>
+<file alias="new">resources/icons/objects.png</file>
+<file alias="close">resources/icons/close.png</file>
+<file alias="fit-width">resources/icons/fit-width.png</file>
+<file alias="fit-window">resources/icons/fit-window.png</file>
+<file alias="undo">resources/icons/undo.png</file>
+<file alias="hide">resources/icons/eye.png</file>
+<file alias="quit">resources/icons/quit.png</file>
+<file alias="copy">resources/icons/copy.png</file>
+<file alias="edit">resources/icons/edit.png</file>
+<file alias="open">resources/icons/open.png</file>
+<file alias="save">resources/icons/save.png</file>
+<file alias="format_voc">resources/icons/format_voc.png</file>
+<file alias="format_yolo">resources/icons/format_yolo.png</file>
+<file alias="save-as">resources/icons/save-as.png</file>
+<file alias="color">resources/icons/color.png</file>
+<file alias="color_line">resources/icons/color_line.png</file>
+<file alias="zoom">resources/icons/zoom.png</file>
+<file alias="zoom-in">resources/icons/zoom-in.png</file>
+<file alias="zoom-out">resources/icons/zoom-out.png</file>
+<file alias="delete">resources/icons/cancel.png</file>
+<file alias="next">resources/icons/next.png</file>
+<file alias="prev">resources/icons/prev.png</file>
+<file alias="resetall">resources/icons/resetall.png</file>
+<file alias="verify">resources/icons/verify.png</file>
+<file alias="strings">resources/strings/strings.properties</file>
+<file alias="strings-zh-TW">resources/strings/strings-zh-TW.properties</file>
+<file alias="strings-zh-CN">resources/strings/strings-zh-CN.properties</file>
+</qresource>
+</RCC>

PPOCRLabel/resources/icons/app.svg

+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="200px" height="200px" viewBox="0 0 200 200" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <title>APPicon备份 3@2x</title>
+    <defs>
+        <linearGradient x1="50%" y1="0%" x2="50%" y2="100%" id="linearGradient-1">
+            <stop stop-color="#A5ACFF" offset="0%"></stop>
+            <stop stop-color="#545DFF" offset="100%"></stop>
+        </linearGradient>
+    </defs>
+    <g id="APPicon备份-3" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <g id="编组-3备份-2" fill="url(#linearGradient-1)">
+            <rect id="矩形" x="0" y="0" width="200" height="200" rx="4"></rect>
+        </g>
+        <g id="编组-4备份" transform="translate(11.000000, 11.000000)">
+            <polyline id="路径" stroke="#FFFFFF" stroke-width="6" stroke-linecap="round" stroke-linejoin="round" points="104 167 11 167 11 11 167 11 167 96.7728865"></polyline>
+            <circle id="椭圆形" fill="#FFFFFF" cx="167" cy="11" r="11"></circle>
+            <circle id="椭圆形备份-8" fill="#FFFFFF" cx="11" cy="11" r="11"></circle>
+            <circle id="椭圆形备份-9" fill="#FFFFFF" cx="11" cy="167" r="11"></circle>
+        </g>
+        <path d="M85.9991492,141 L69,141 L69,60 L97.061099,60.0005168 C106.622339,60.0180588 113.008403,60.4807625 115.775763,61.1684309 C120.478388,62.336394 124.240393,64.9067781 127.297375,69.1122872 C130.353887,73.08404 132,78.4580969 132,84.7663606 C132,89.6731387 131.059499,93.8786478 129.413268,97.1497163 C127.767626,100.420785 125.416373,103.224458 122.594751,105.09369 C119.773129,106.962805 116.951625,108.364641 114.130121,108.83192 C110.367998,109.766594 104.724872,110 97.4355156,110 L97.4355156,110 L85.999,110 L85.9991492,141 Z M86,74.2965717 L85.9299926,74.2965717 L85.929,96.849 L95.7229134,96.8497738 C101.895297,96.8497738 106.289281,96.4080944 108.473591,95.739226 L108.655396,95.681343 C110.771288,94.9806587 112.417401,93.5787054 113.828271,91.7095902 C115.239023,89.840475 115.709274,87.7373697 115.709274,85.4009757 C115.709274,82.3637805 114.768772,80.0273866 113.122542,78.1581545 C111.476782,76.2890393 109.125646,75.1206084 106.538915,74.6533297 C104.879206,74.2409217 101.572085,74.1924031 96.7786667,74.186695 L95.8002135,74.1860291 C95.4674884,74.1859339 95.1282054,74.1859339 94.7824121,74.1859339 L86,74.185 L86,74.2965717 Z" id="形状结合" fill="#FFFFFF"></path>
+        <g id="编组" transform="translate(158.000000, 153.000000) rotate(65.000000) translate(-158.000000, -153.000000) translate(126.000000, 113.000000)">
+            <path d="M32,8 C14.326888,8 0,22.326888 0,40 C0,49.0801087 3.78188139,57.2769117 9.85641113,63.1011759 M32,72 C49.673112,72 64,57.673112 64,40 C64,30.9865538 60.2734449,22.8434911 54.2770078,17.0274853" id="形状备份-2" stroke="#FFFFFF" stroke-width="5" stroke-linecap="round"></path>
+            <polygon id="三角形备份-3" fill="#FFFFFF" transform="translate(38.000000, 8.000000) scale(-1, 1) rotate(-90.000000) translate(-38.000000, -8.000000) " points="38 2 46 14 30 14"></polygon>
+            <polygon id="三角形备份-4" fill="#FFFFFF" transform="translate(26.000000, 72.000000) rotate(-90.000000) translate(-26.000000, -72.000000) " points="26 66 34 78 18 78"></polygon>
+        </g>
+    </g>
+</svg>
\ No newline at end of file