C++ Find the brightest and darkest pixel coordinates in an image?

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Find the brightest and darkest pixel coordinates in an image using C++?

Posted 16-Sep-14 20:08pm

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Legor 17-Sep-14 9:31am

Using which API? Be more specific.

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KarstenK · Answer 1 · 2014-09-16T21:50:00

Solution 1

For compressed images; draw the image on a (memory) DC and GetPixel API to get the values and compare them.

For uncompressed images: You can also access the image in the memory and fetch its data, but it depends on the internal data format.

Posted 16-Sep-14 21:50pm

KarstenK

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barneyman 17-Sep-14 23:07pm

if the OP wants actual brightness, they'll have to convert that RGB to HSL, specifically L - http://www.rapidtables.com/convert/color/rgb-to-hsl.htm

KarstenK 18-Sep-14 3:50am

the Question is so unspecified that it isnt possible to give a better answer. :-(