please help with adding a value to greyscale image
Posted: 2015-09-28T02:02:31-07:00
sorry but i'm new to imagemagick, i hope someone can help a simple task
i have a 16 bit per pixel, greyscale, raw format image (pc format data). (its a heightmap) i need to add a value to every pixel, say add 10, then save back as a raw file.
i think i need to use the math expression feature but can't figure it out, can anyone help?
(by the way, i changed the .raw file to 16 bit .tif and opened it in imagemagick and it looks ok so i can work with tif if its easier)
thx
i have a 16 bit per pixel, greyscale, raw format image (pc format data). (its a heightmap) i need to add a value to every pixel, say add 10, then save back as a raw file.
i think i need to use the math expression feature but can't figure it out, can anyone help?
(by the way, i changed the .raw file to 16 bit .tif and opened it in imagemagick and it looks ok so i can work with tif if its easier)
thx