Get Image Pixel
Blitz3D Forums/Blitz3D Programming/Get Image Pixel
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| Well, i am sure this can be done, but i cannot find how! I Load an image (loadimage bla bla bla) and i want to get the color of the pixel x,y. How? Thanks Masters... |
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| Ohhh, imagebuffer! Sorry for asking! |
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| Well, another problem: I have a 256 Color Image (gray scale) I want to read the image and store its values in a matrix, where each value is a number between 0-255. Any Clues? Any Code? Thaaanks. |
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| Greetings Puppies, I *think* blitz will automatically convert it to 16/32 bit depth. Look at the the ReadPixel and ReadPixelFast commands - search the forums if you need help understanding them because they've been explained to death elsewhere. Peace, Jes |
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| Yep, i understand them. I read the image without problems, but i get values like -1671782. I want values from 0 to 255 :( |
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| Greetings Puppies, In that case you don't understand them ;0) Try searching the forums, really. You'll find out all about the beauty of masking and bit shifting and I promise you'll get your answers. Peace, Jes |
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| I know they are rgb values! I have coded bmp lot of times. Anyway i am searching the forums, hehe. Anyway, knowing that you *think* that Blitz converts it to 16-32 bits depth is a help. Thanks. |
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| Found IT! argb=ReadPixelFast(x,y,ImageBuffer(image_name)) gotr=(ARGB Shr 16) And $ff gotg=(ARGB Shr 8) And $ff gotb=ARGB And $ff GrayValue = (gotg+gotr+gotb) / 3 |
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| Greetings Puppies, That's the one! See, the forums can be useful ;0) Peace, Jes |
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