Converting from color to true black and white in ImageMagick?
130406
How to convert a photo to a black and white image by ImageMagick?
140339
How to convert RGB images to grayscale in matlab without using rgb2gray
152418
How do you create a washed out effect with deep blacks?
148467
Is there way to colorize by RGB in GIMP?
79216
Conversion problem using standalone and imagemagick
92137
Can I make color data not render as gradient?
90268
How to convert 4-channel PNG files to grayscale geoTIFFs?
74661
Exporting raster as .tif with "use renderer" and "force RGB" produces inaccurate colors?
773
How can I create a multi-color blurred background?
64347
FFmpeg: Convert transparency to a certain color
96774
How do I recreate the colours and what seems to be a filter on the image
17921
How to convert the background color of image to match the color of Pygame window?
63776
Why am I only getting grayscales / monotones when applying colors in Adobe Illustrator?
137917
How can Blender be augmented to display color critical and accurate results?
119603
How can I setup my printer to print in black and white as default?
16627
How can I convert an RGB image into grayscale in Python?
39962
How do I correct white balance in JPEG images?