Anything related to digital image processing, i.e. the theory and the techniques used to extract or manipulate information from digital images.

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20 views

Javascript solution to calculate image ratio to fit given square footage

OK, I am working on a project where a viewer can upload an image, and my client wants to offer three defined sizes all based on square footage.So, if a viewer loads up a 5000 x 3000 px image, we ...
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8 views

How to read scanned table in Python using pytesseract?

I'm trying to read data tables from an image file with pytesseract. My image is that one:p27-001Initially I tried to use the image_to_data method: from PIL import Imageimport pytesseracttab_im ...
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11 views

Maintain aspect ratio of resized bitmap

I implemented this to resize bitmap and preserve aspect ratio which worked but I wonder if there is a way to implement this such that all the images have the same height and width irrespective of the ...
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1answer
19 views

Restore blurred images about license plate nume [on hold]

Image to be recognizedPlease help me to identify the last five digits of this license plate nume. Either by upsampling or by convolutional neural networks.What I need is the result of the ...
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1answer
22 views

Window freezing even after using waitKey() and destroyAllwindows() in Opencv

ENVIRONMENTOS- mint Linux,using opencv3.1,using spyder through anacondaISSUEThe code mentioned below opens a window of name frame and display the video captured through laptop camera.But when I ...
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30 views

OCR: How to localize characters in a serial number image?

I have the following problem: I have some serial numbers which always consist of 2 lines of 7 characters, (0-9 and A-Z), with a total of 14 characters. These serial numbers are located on the images ...
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12 views

Soft thresholding for images?

I know that there are 2 types of thresholding techniques, global and soft thresholding method. Global is when you choose a threshold and anything below that value is 0 and otherwise 255(for 8 bit ...
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1answer
14 views

how to load more than one trained face recognizer in one face recognizer open CV?

I am trying to train face recognizer but i don't want to train every time a new user data is entered in face database so i want to train new user data and then concatenate with previous trained ...
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55 views

Determine if an image is blurred

I saw a lot a topic about this, I understood the theory but I'm not able to code this.I have some pictures and I want to determine if they are blurred or not. I found a library (aforge.dll) and I ...
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41 views

Square bitmap before uploading

hello i have the following code for getting image from gallery activity and i want the image to be squared to particular dimension say 400*400 before it is uploaded while maintaining its aspect ratio ...
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2answers
66 views

How to distinguish between black and white chessboard squares

I want to automatize the process of classifying the squares of chessboard images as black or white square. The step further would be to distinguish if it's an empty square or if the square is ...
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48 views

Finding the Negative Space in an Image or Cartesian Plane

Please Note - This is a Math question essentially. However, i have also tagged C#as this is the language i am working inSummaryI'm looking for an algorithm (or name thereof) that can find the ...
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1answer
30 views

OpenCV Error: Bad argument (bytes must be 16, 32, or 64) in BriefDescriptorExtractorImpl

I am trying to detect feature points using SURF and descriptor extractor using BRIEF.cv::Ptr<Feature2D> detector=xfeatures2d::SurfFeatureDetector::create(400);Mat descriptors_img1, ...
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28 views

Image Analysis Program Crashing - not sure why

I am attempting to make an app using the android studio that allows the user to choose a photo from their gallery, and then determines the brightest area in the picture. It does this by analyzing a ...
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37 views

Image processing: where do you think the issue is originated from?

I am working on a lane detection project. Figure 1 shows one of the frames of the dashboard recording.I have taken the following steps:Removed the noise.Detected the edges using Canny Edge ...

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angop.ao, elkhabar.com, noa.al, afghanpaper.com, bbc.com, time.com, cdc.gov, nih.gov, xnxx.com, github.com,