this is a part of my OCR code. This part looks for a special word in a scanned PDF and prints this out. I have like 10 Queries like this and all print me the word I am looking for. Now I want to get the found words saved in a CSV, but I don’t know how to do that.
Tag: ocr
cv2.error (-215:Assertion failed) reader.ptr != NULL in function cvDrawContours
So I’m trying to create a license plate detection program and I have been following a guide for that, (https://github.com/nicknochnack/ANPRwithPython/blob/main/ANPR%20-%20Tutorial.ipynb) however I am currently running into a problem. I have also tried to change “location” to 0 or [0] but to no success. Answer Found the “solution” to this, although it’s not much an Solution. The reason this kept happening
Pytesseract read coloured text
I am trying to read coloured (red and orange) text with Pytesseract. I tried to not grayscale the image, but that didn’t work either. Images, that it CAN read Images, that it CANNOT read My current code is: Answer This little function (below) will do for any color ec9Ut.png Thresh result x18MN.png Thresh result SFr48.png Thresh result Output
How can I extract numbers from video frames using Tesseract OCR?
I am interested in extracting numbers from standardized videos (always HD resolution @ 1920×1080, 30 FPS) I have. Numbers always appear in fixed sections of the screen and are never missing. My approach would be to: Save video in frame by frame PNGs Load a single PNG frame Select the areas of interest (there are a four sections I want
Bounding box detection for characters / digits
I have images, which look like the following: I want to find the bounding boxes for the 8 digits. My first try was to use cv2 with the following code: Unfortunately that doesn’t work. Does anyone have an idea? Answer The problem in your solution is likely the input image, which is very poor in quality. There’s hardly any contrast
How can I read a full sequence of digits using tesseract instead of first digit only
I have the following clear binary image, and I want to read the digits using tesseract. My problem is that tesseract is reading only the first digit (5)! How can I make tesseract read the full sequence? Output: 5 < o x o c > Answer You will have to do some amount of preprocessing before you push the image
Pytesseract not detecting a digit which might be a picture within a picture
I’m trying to extract the number from the image string given below I have no problem in extracting digits from normal text, but the digit in the above strip seems to be a picture within a picture. This is the code I’m using to extract the digit. I’ve tries all possible psm from 1 to 13, and they all display
How to convert and save a list of ints to a bitmap image?
I’m trying to convert a list of numbers that I believe represent bytes that together constitute a bitmap image, into said image file (saved to disk) and/or simply converted into a form usable by tesseract. I’d prefer to be able to visualize the images, though, to make sure the conversion actually worked properly. I don’t know the shape of the
How to de-skew a text image and retrieve the new bounding box of that image Python OpenCV?
Here’s a receipt image that I’ve got and I’ve plotted it using matplotlib and If you see the image the text in it is not straight. How can I de-skew and fix it? I think if we want to de-skew first we have to find the edges, so I tried to find the edges using canny algorithm and then get
Python OpenCV skew correction for OCR
Currently, I am working on an OCR project where I need to read the text off of a label (see example images below). I am running into issues with the image skew and I need help fixing the image skew so the text is horizontal and not at an angle. Currently the process I am using attempts to score different