我想检测图像中每个角色的位置。
我按照how to get character position in pytesseract的建议尝试了pytesseract但是给了我一个错误
import csv
import cv2
from pytesseract import pytesseract as pt
pt.run_tesseract('bw.png', 'output', lang=None, boxes=True, config="hocr")
# To read the coordinates
boxes = []
with open('output.box', 'rb') as f:
reader = csv.reader(f, delimiter = ' ')
for row in reader:
if(len(row)==6):
boxes.append(row)
# Draw the bounding box
img = cv2.imread('bw.png')
h, w, _ = img.shape
for b in boxes:
img = cv2.rectangle(img,(int(b[1]),h-int(b[2])),(int(b[3]),h-int(b[4])),(255,0,0),2)
cv2.imshow('output',img)
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-38-bad5c94b3e13> in <module>()
3 from pytesseract import pytesseract as pt
4
----> 5 pt.run_tesseract('input/1230.jpg', 'output', lang=None, boxes=True, config="hocr")
6
7 # To read the coordinates
TypeError: run_tesseract() got an unexpected keyword argument 'boxes'
我确实意识到它对于python 2.7,有人可以指导我或者给我一个如何为python 3.x做一个开始
然后我尝试了tesserocr似乎无法解决tessdata的路径无论如何,我尝试使用tesseracct-ocr,尝试手动下载tessdata但仍然是同样的错误。
from PIL import Image
from tesserocr import PyTessBaseAPI, RIL
image = Image.open('train/1230.jpg')
with PyTessBaseAPI(path="C:\\Users\light\Desktop\tessdata-master") as api:
api.SetImage(image)
boxes = api.GetComponentImages(RIL.TEXTLINE, True)
print('Found {} textline image components.'.format(len(boxes)))
for i, (im, box, _, _) in enumerate(boxes):
# im is a PIL image object
# box is a dict with x, y, w and h keys
api.SetRectangle(box['x'], box['y'], box['w'], box['h'])
ocrResult = api.GetUTF8Text()
conf = api.MeanTextConf()
print (u"Box[{0}]: x={x}, y={y}, w={w}, h={h}, "
"confidence: {1}, text: {2}").format(i, conf, ocrResult, **box)
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call last)
<ipython-input-11-68789b2bbe93> in <module>()
3
4 image = Image.open('train/1230.jpg')
----> 5 with PyTessBaseAPI(path="C:\\Users\light\Desktop\tessdata-master") as api:
6 api.SetImage(image)
7 boxes = api.GetComponentImages(RIL.TEXTLINE, True)
tesserocr.pyx in tesserocr._tesserocr.PyTessBaseAPI.__cinit__()
tesserocr.pyx in tesserocr._tesserocr.PyTessBaseAPI._init_api()
RuntimeError: Failed to init API, possibly an invalid tessdata path: C:\Users\light\Desktop essdata-master
答案 0 :(得分:1)
boxes
参数仅对pytesseract版本0.1.x有效。它已在0.2.0版本中删除。
答案 1 :(得分:1)
使用方法image_to_boxes使用pytesseract获取图像中的字符及其位置:
ret = pt.image_to_boxes(pil_img)
结果是一个字符串,其中每一行都是一个字符,它的位置(x1,y1,X2,y2)用空格分隔:
a 30 10 45 20
b 49 12 54 23