How to find x and y value of top corner of the image

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Muhammad Umar khan 2019-7-18

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https://ww2.mathworks.cn/matlabcentral/answers/472313-how-to-find-x-and-y-value-of-top-corner-of-the-image

评论： Muhammad Umar khan 2019-7-20

20181224_134426.JPG

Please help me to auto detect x and y cordinate of the higlight with red rectangle symbol in jpg

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KALYAN ACHARJYA 2019-7-18

You can calculate based on reference non white first pixel.

Muhammad Umar khan 2019-7-18

any code help?

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回答（1 个）

Image Analyst 2019-7-18

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https://ww2.mathworks.cn/matlabcentral/answers/472313-how-to-find-x-and-y-value-of-top-corner-of-the-image#answer_383762

See my attached Optical Mark detection demo.

Like I tell many people every month, it's so much easier to do image analysis if your image that you captured is better. This eliminates the step of having to preprocess the image to repair it. So, for you, why are you taking a hand-held photo at some weird angle rather than using something like, say, a flatbed scanner where all your images will start off all aligned? Why not make it easy on yourself, not hard?

Muhammad Umar khan 2019-7-20

Dear image analyst i understand your point of view.. but when we copy 1 lakh copy through straight path scanner there is a chance all images are not straight.. can you help me to detect barcode and read their value from image?

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