Category "image-processing"

Use a derived mapping function to modify s?

I've read this entire paper multiple times, and I've found a way to make everything in python... Except this (Article II, section C). They want me to upscale th

How to use DeepFace.detectFace() to actually detect a face in an image?

I am trying to identify and count the number of human faces in a every picture of a folder full of pictures, I am using Deepface to get the job done. I have onl

Is there a way to automatically dewarp/uncurl/flatten warped/distorted scanned document images in C#?

I'm trying to automatically dewarp scanned document images using C#. The Situation: I have images of a 6 page empty form (every page is different). I also have

Is there a way to read and collect EMF image file in python? Can we read a EMF image with OpenCV ? How to convert it in jpg or png?

I am searching for a solution for a long time but couldn't be able to find it. There are more similar qestion-answers but that didn't help me. Basically I have

How to remove cloth from a person using python

My Input Image is this. I need only the face and hair from that image and others will convert to white background including cloth. I used mediapipe's SelfiSegm

How to improve the visibility of numbers on license plate for OCR

I am using easyocr methods to recognize the text on the license plate but the results are not good. I have developed deep learning model which detects license p

Improve edge detection using opencv

so I am working on a project to scan analog photos. The program should detect the edges and crop it automatically. For that I am using Python and OpenCV. My pro

How to detect the exact color of the images using hsv color model and opencv

I have datasets of images of gemstones.I have categorised the gemstones into folders based on their colours.(That is Red, Blue, Pink,Purple,Yellow). What I want

image.Mat in EmguCV is always in BGR format?

My code is all done thinking that the input Mat is in BGR format, so I am wondering if given an Image object in EmguCV, the property Mat from this object is alw

CS50: Filter Edge Returns Mostly White Image

I have been stuck on CS50 Filter - Edges for a few days now, having a hard time determining what's wrong with my code. This code returns an almost all white ima

Particle detection with Python OpenCV

I'm looking for a proper solution how to count particles and measure their sizes in this image: In the end I have to obtain the lists of particles' coordinates

Find Corners of pool table for perspective warp with OpenCV

I have an image of a pool table with slight perspective distortion: I am trying to un-warp the image (such that the corners of the pool table correspond to the

Find Corners of pool table for perspective warp with OpenCV

I have an image of a pool table with slight perspective distortion: I am trying to un-warp the image (such that the corners of the pool table correspond to the

Find question text block in image with Python Opencv

How can I select question blocks in a jpg file with questions in Python code? The codes below select texts. I want to select question blocks with their choices.

How to fill holes or reduce noise in an image?

I need to reduce the noise in images like the one bellow, i.e. fill the holes in the white object. I tried something with opencv but it ended up removing part o

How to fill holes or reduce noise in an image?

I need to reduce the noise in images like the one bellow, i.e. fill the holes in the white object. I tried something with opencv but it ended up removing part o

Identify table grid in image

I have to identify the table grid in this image and change it to Grimson red color. I am a beginner in image processing. img_arr = mpimg.imread("1.jpg") plt.

Is there any way to detect edge in this situation?

I try to detect edge using python. There are hundreds of algorithms for edge detection, however, the image is very obscure and unclear. The most serious problem

Ros2 : stereo image rectification

I'm starting to develop a visual odometry program. The "front" part (image acquisition and hopefully rectification) is done in ROS2, then the core of the proces

finding not exactly same template in image

I want to find a character in my input image. When I crop char from an image and use template matching, in almost all cases, it works perfect; but if I use that