how to get the pixel value and the location in an image

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Karbala'a Unvi. Science 2020-6-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/550794-how-to-get-the-pixel-value-and-the-location-in-an-image

评论： Ameer Hamza 2020-6-20

采纳的回答： Ameer Hamza

Hi to evryone,

I am looking for a code, that find and write the location and the value (attomatically)of each pixel in an image ..

I know that there is a lot of work need to do insted of asking, but I am welling to collacet any help to do that code

Welling to have an answer from my fellow freinds here in this community..

Best of all wishes

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Answer 1

Ameer Hamza 2020-6-19

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https://ww2.mathworks.cn/matlabcentral/answers/550794-how-to-get-the-pixel-value-and-the-location-in-an-image#answer_453772

在 MATLAB Online 中打开

See ginput(). For example, run this

img = imread('pears.png');
imshow(img)
[x, y] = ginput(1);
pixel_values = img(floor(x), floor(y), :);
disp(pixel_values)

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Karbala'a Unvi. Science 2020-6-19

Dear Sir,

I tried this code you sent, but it still giving the error below

Error in Untitled (line 5)

pixel_values = img(floor(x), floor(y), :);

of course ,thank you , but what i need is a code that aottomaticaly gives (value and location) of all the pixeles of an image

thank you very much in advance

yours

Z

Ameer Hamza 2020-6-20

What is the complete error message? Can you explain in which format do you want all the pixel values? All the pixel values are already stored in the array 'img'.

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how to get the pixel value and the location in an image

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how to get the pixel value and the location in an image

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