I am trying to convert a RGB image to Grayscale using the following paper. The main algorithm using in the paper is this: Novel PCA based algorithm to convert images to grayscale However, when I am trying to extract eigen…
I'm currently stuck on a video projet from pictures. Problem : I'm extracting pictures from UE4, due to a bug, not all lights are taken into account during the rendering of the screenshot. Output are HDR images. I want to…
I'm trying to extract text from an image using Tesseract OCR. Currently, with this original input image, the output has very poor quality (about 50%). But when I try to remove all lines and borders using photoshop, the output improves…
I've written an application that segments an image based on the text regions within it, and extracts those regions as I see fit. What I'm attempting to do is clean the image so OCR (Tesseract) gives an accurate result. I…
I am new to openCV(with Python) and image processing and tried to start a project of my own to learn how things work. I'm trying to select the teeth from an image of an open mouth. The best solution that…
I'm trying to reproduce Photoshop's multiply blend mode in OpenCV. Equivalents to this would be what you find in GIMP, or when you use the CIMultiplyBlendMode in Apple's CoreImage framework. Everything I read online suggests that multiply blending is accomplished…
so i want to segment a tree from an aerial image sample image (original image) : and i expect the result like this (or better) : the first thing i do is using threshold function in opencv and i didn't…
I want to do something similar to the levels function in Photoshop, but can't find the right openCV functions. Basically I want to stretch the greys in an image to go from almost white to practically black instead of from…