How to detect logos inside an image - OpenCV Q&A Forum
2018年1月14日 · Sure I'm detecting a logo but many say to use template matching which clearly won't work for me due to rotation, stretching etc, also the fact that I have multiple logos to try and match which potentially none of them will match. Also there is no way I have found of obtaining the logos from an image.
Logo detection in screenshot - OpenCV Q&A Forum
2018年5月15日 · I thought I could use feature matching however this has over matched each logo on each screenshot, providing the same number of matches for a logo on the page vs a logo not on the page. I also tried matching with FLANN but got 0 matches. Results are as follows: AT&T logo in AT&T page (basic feature matching) C:\fakepath\image0.png
Inserting Logo in an image - OpenCV Q&A Forum
I want to insert logo in an image. For that I tried below code: import cv2 import numpy as np img1 = cv2.imread('xyz.JPG') img2 = cv2.imread('logo.JPG') rows,col,channel = img2.shape roi = img1[0:rows,0:col] img2g = cv2.cvtColor(img2,cv2.COLOR_BGR2GRAY) ret, mask = cv2.threshold(img2g,180,255,cv2.THRESH_BINARY_INV) mask_inv = cv2.bitwise_not(mask) …
Exercise Problem: Bitwise Operations. - OpenCV Q&A Forum
2019年1月29日 · I want to put OpenCV logo above an image. If I add two images, it will change color. If I blend it, I get an transparent effect. But I want it to be opaque. If it was a rectangular region, I could use ROI as we did in last chapter. But OpenCV logo is a not a rectangular shape.
Selective remove or blur logo in image - OpenCV Q&A Forum
2020年6月27日 · In every frame, the logo is in the same position, however, in some frames there are a partial overlay of the logo, which I cannot remove/blur because it has important information. Check the images (the logo is in the left botton): Most part of the video is like this. In some parts of the video, the region is like this.
Logo detection techniques - OpenCV Q&A Forum
Feed that Adidas logo as your template into your scenes and you will detect it right away. It will even perform better than your cascade, that you can bet. Take a look into the link I gave, go down further in bottom and you will see an example where someone tries to detect a coin (consider it your logo, since it also has a fixed shape and it ...
Logo detection OpenCV - OpenCV Q&A Forum
2014年5月8日 · Logo detection OpenCV. edit. detection. recognition. asked 2014-05-07 15:09:59 -0600 mateusz 1 ...
Video processing to detect a logo in frames - OpenCV Q&A Forum
2017年12月5日 · I am trying to detect a TV channel logo inside a video file, so simply given an input .mp4 video, detect if it has that logo present in all (or most) of frames or not (or maybe what percentage of frames include that logo). My aim is to classify ad and video portions (I noticed ads do not have the logo).
Questions - OpenCV Q&A Forum
How can I detect logos in scanned documents, and identify if two logos are similar [closed]
where to get simple.jpg - OpenCV Q&A Forum
2015年10月7日 · Basic Operations on Images is missing: opencv_logo.png. Arithmetic Operations on Images is missing: ml.png, opencv_logo.jpg (actually, it is a different file from the one currently in the source) Geometric Transformations of Imagesis missing: drawing.png, sudokusmall.png.
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