I want to print a Bitmap to a mobile Bluetooth Printer (Bixolon SPP-R200) - the SDK doesn't offer direkt methods to print an in-memory image. So I thought about converting a Bitmap like this: Bitm...

Background: I performed an Indexed conversion in Gimp of a color image and the result was a nice B&W version of the source Image. I have tried numerous options in ImageMagick to no avail. I can...

How do I convert the RGB values of a pixel to a single monochrome value?

How can I convert an existing colored BufferedImage to monochrome? I want the image to be completely split between only two rgb codes, black and white. So if there's a border around the image which...

I converted a bunch of "normal" JPG photos via convert infile -colorspace Gray outfile to monochrome. However the result is for all images very dark. Here a sample conversion: original photo and...

I've been testing an HTML5 webapp on eReaders, and I got it mostly working, but the colors are all messed up (it's monochrome). My app uses lots of colors with an update every second. I need this t...