All Questions
Tagged with computer-vision ocr
312
questions
-3
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0
answers
59
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How to add horizontal lines to the table in image opencv
I want to add horizontal lines to the below image
resultant output should be like:
Any methods on how to work it out, even if there are diff images which don't have horizontal lines.
I've tried ...
- 19
0
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38
views
How to accurately calculate absolute bbox coordinates of detected text in Doctr ocr?
I have been trying to draw bbox on a picture of the document which I am trying to ocr using mindee-doctr to see the detected lines of text. The problem I am facing is the absolute coordinates of the ...
-2
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0
answers
39
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Should I train an OCR model for handwritten text recognition for a mobile app or just avail API services?
Is it worth building a handwritten text recognition model for a mobile app (need to finish this project by next month)? Must be at least 75% accurate.
I'm building a simple Android mobile app (react ...
- 1
-1
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0
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96
views
How would you improve the receipt recognition for this specific receipt (images are included)?
Currently, we are doing some pre-processings and use tesseract to extract text from this particular receipt.
Please note that I'm only asking for this particular receipt because I hope it's easier to ...
- 1,889
0
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0
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40
views
better approach for connected component analysis of image (with lots of text)
import cv2
import numpy as np
import matplotlib.pyplot as plt
img = cv2.imread("20240328_145148.jpg")
gray_img=cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
blurred = cv2.GaussianBlur(gray_img, (7,...
- 3
0
votes
0
answers
34
views
Struggling with using an OMR to detect checkboxes
Good morning! Right now, I'm working on a project that takes a paper form and converts it into an Excel spreadsheet. The unfortunate problem I'm working to solve is actually detecting the checkboxes ...
0
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0
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13
views
How do I fix the insertObjectAnnotation errors in my MATLAB app designer code?
I am trying to write a code that scans and image, identifies certain words, and highlights those words. I am using MATLAB's app designer to build this program. When I try to run my code however, I am ...
0
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0
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49
views
High Latency Issue with Paddle OCR on IP Camera Text Extraction
Preprocessing frames with blur and adaptive techniques works smoothly, but OCR with Paddle OCR introduces a significant 10-second latency per frame.Using Python 3.10.6 and PaddleOCR version 2.6.1.
...
- 1
0
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47
views
How to make Tesseract work for Scoreboards
I'm trying to extract all score information from the scoreboard from a frame from a video using Tesseract OCR, but I'm having difficulties. I am either getting incorrect data, or not detecting the ...
- 1
0
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0
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22
views
ValueError: Input 0 of layer "model" is incompatible with the layer: expected shape=(None, 64, 32, 1), found shape=(32, 32, 1)
I tried debugging and added print statements, to my surprise it is of correct shape, yet the program says its not of the shape
Shape: (None, 64, 32, 1)
Model: "model"
...
0
votes
0
answers
26
views
Improving PyTesseract text extraction quality
I am working on an OCR project where I need to extract text from images. How can I improve text extraction quality in python.
The OCR sometimes fails to detect small text in the image.
The OCR output ...
1
vote
1
answer
94
views
How to split image of a hand-written sentence into the words (get coords of beginning and ending of each word)
I'm doing a text recognition script (HCR) and it works fine if I'm giving him just 1 word. But my task is to give him a full text and I'm stuck here...
The text can be vertical and horizontal at the ...
0
votes
0
answers
59
views
Detect text that overlaps with lines on a drawing using Computer Vision
I aim to detect text overlapped with lines on architectural drawings.
My ideal is to detect all lines and record them. Next, I will attempt to detect text using OCR and record the bounding boxes of ...
- 15
0
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0
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63
views
How to segment the different attributes of a table in an image in key-value pairs using libraries like OpenCV?
I have various images containing unstructured data, mostly in tabular format. How do I use computer vision to identify tables, segment the different portions of the table and then extract the values ...
2
votes
0
answers
205
views
Using Python to extract timestamp text from frame of videos
I have a series of videos that contain timestamp in a specific ROI which I have already found. The text can vary between black and white and can mix in the same timestamp. I am struggling to use ...
- 21