修改显示方式，微调显示参数

tools/infer/predict_system.py

@@ -134,9 +134,8 @@ if __name__ == "__main__":
             txts = [rec_res[i][0] for i in range(len(rec_res))]
             scores = [rec_res[i][1] for i in range(len(rec_res))]
 
-            # draw_img = draw_ocr(
-            #     image, boxes, txts, scores, draw_txt=True, drop_score=0.5)
-            draw_img = draw_ocr_box_txt(image, boxes, txts)
+            draw_img = draw_ocr(
+                image, boxes, txts, scores, draw_txt=True, drop_score=0.5)
             draw_img_save = "./inference_results/"
             if not os.path.exists(draw_img_save):
                 os.makedirs(draw_img_save)

tools/infer/utility.py

@@ -157,20 +157,23 @@ def draw_ocr(image, boxes, txts, scores, draw_txt=True, drop_score=0.5):
     return image
 
 
-def draw_ocr_box_txt(image, boxes, txts, drop_score=0.5):
-    img_show = Image.new('RGB', (image.width * 2, image.height), (255, 255, 255))
-    img_show.paste(image, (image.width, 0, image.width * 2, image.height))
-    img_show_bak = img_show.copy()
-    height, width = image.height, image.width
+def draw_ocr_box_txt(image, boxes, txts):
+    h, w = image.height, image.width
+    img_left = image.copy()
+    img_right = Image.new('RGB', (w, h), (255, 255, 255))
 
     import random
-    random.seed(12345)
-    draw = ImageDraw.Draw(img_show)
+    # 每次使用相同的随机种子 ，可以保证两次颜色一致
+    random.seed(0)
+    draw_left = ImageDraw.Draw(img_left)
+    draw_right = ImageDraw.Draw(img_right)
     for (box, txt) in zip(boxes, txts):
         color = (random.randint(0, 255), random.randint(0, 255), random.randint(0, 255))
-        draw.polygon(box, outline=color)
-        draw.polygon([width + box[0][0], box[0][1], width + box[1][0], box[1][1], width + box[2][0], box[2][1], width + box[3][0], box[3][1]],
-                     fill=color)
+        draw_left.polygon(box, fill=color)
+        draw_right.polygon([box[0][0], box[0][1],
+                            box[1][0], box[1][1],
+                            box[2][0], box[2][1],
+                            box[3][0], box[3][1]], outline=color)
         box_height = math.sqrt((box[0][0] - box[3][0]) ** 2 + (box[0][1] - box[3][1]) ** 2)
         box_width = math.sqrt((box[0][0] - box[1][0]) ** 2 + (box[0][1] - box[1][1]) ** 2)
         if box_height > 2 * box_width:
@@ -179,13 +182,16 @@ def draw_ocr_box_txt(image, boxes, txts, drop_score=0.5):
             cur_y = box[0][1]
             for c in txt:
                 char_size = font.getsize(c)
-                draw.text((box[0][0] + 3, cur_y), c, fill=(0, 0, 255), font=font)
+                draw_right.text((box[0][0] + 3, cur_y), c, fill=(0, 0, 0), font=font)
                 cur_y += char_size[1]
         else:
             font_size = max(int(box_height * 0.8), 10)
             font = ImageFont.truetype("./doc/simfang.ttf", font_size, encoding="utf-8")
-            draw.text(box[0], txt, fill=(255, 0, 0), font=font)
-    img_show = Image.blend(img_show_bak, img_show, 0.75)
+            draw_right.text([box[0][0], box[0][1]], txt, fill=(0, 0, 0), font=font)
+    img_left = Image.blend(image, img_left, 0.5)
+    img_show = Image.new('RGB', (w * 2, h), (255, 255, 255))
+    img_show.paste(img_left, (0, 0, w, h))
+    img_show.paste(img_right, (w, 0, w * 2, h))
     return np.array(img_show)