Questions tagged as 'opencv'

Tagged questions
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How can I display content captured by the camera in full screen in OpenCV?

Would you like to know how to show captured webcam content (via videoCapture) in a window that occupied the entire screen? Only appears in a small window. Do you have to change something in imshow(" imagem ", frame) ?     
asked by 01.04.2017 / 21:00
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How to remove image noise using opencv - python?

I am working with skin images, in recognition of skin blemishes, and due to the presence of noises, mainly by the presence of hairs, this work becomes more complicated. I have an image example in which I work in an attempt to highlight only t...
asked by 10.10.2018 / 22:20
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How to remove noises and rows of image with presence of hairs?

I'm working with hair removal on skin images. Searching the literature, the means to achieve my goal, is by applying some techniques of segmentation and noise removal in images. Which I'm applying to. An example image I work for is this: Applyi...
asked by 11.11.2018 / 00:55
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Image segmentation with Canny Edge opencv

I'm trying to target both the iris and pupil edge using opencv's Canny Edge, but all of the parameters I've used do not meet the criteria of making the two borders well delimited. The only way I found of segmenting at least the edge of the iris...
asked by 01.11.2018 / 04:41
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Recognizing images within a larger image

I would like to do a part of my application, in which the user would upload a full image of drawings inside, it would then select an area of the image and I would search across the image uppada, initial points on which that selected image repeats...
asked by 11.07.2014 / 18:46
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How to copy array of integers to type Mat in OpenCV?

I would like to know how to copy an array of integers to an OpenCV Mat-type data? The following is an example I created to illustrate my goal, which corresponds to a given user-generated array (ranging from 0 to 255 - color variation in OpenCV)...
asked by 20.07.2017 / 15:00
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Question: how to use python scripts for web?

I want to make a web application that will read colors in RGB of logos and create suggestions of color scales for websites. The algorithm will be in python using OpenCV. The client uploads the image > the image is read by the > the s...
asked by 07.09.2017 / 04:50
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Remove eye glow from image

Well, I'm trying to apply canny edge to the image because the brightness that is contained in the pupil impairs the result obtained because to have an edge with cv2.Canny() or feature.canny() needs that there is a continuity of it....
asked by 28.11.2018 / 19:49
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How to delete components of an image using python?

I am a beginner in python and would like to know how to remove components (red, blue or green) from an image using python, I downloaded some image processing libraries (like opencv). I would like to know if there is any function that does this i...
asked by 03.12.2017 / 13:56
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Editing images using OpenCV without ready functions

I have the following image shown below and I need to turn it gray and then binarize it. Iusethefollowingcodetoshowitonthescreencv::Matimg=cv::imread("lena.jpg");// Lê a imagem no local onde ela é gerada(matriz) cv::namedWindow("RGB"); cv::im...
asked by 24.08.2015 / 23:41