Why does text look ragged when I print an image on a laser printer?
NIH Image treats text as if it were part of the bitmapped image. To create high quality text for laser printer output and slide makers you need to export the image to a multi-layer, object-oriented drawing program, such as ClarisDraw or PowerPoint. In NIH Image, white is 0 and black is 255, which is the opposite of what I’m used to. How can I change this? Check “Invert Pixel Values” in Preferences. This sets up an inverting density calibration function, causing pixels values displayed in the Info and Results windows to be inverted. Why does the Paste command sometimes get dimmed out? Images copied to the clipboard are stored in the Clipboard buffer. In some situations, such as filtering, NIH Image has to use the Clipboard buffer for internal operations. When this is happens, the Paste command gets dimmed out. How can I create a composite color image? You can’t normally combine two images that have different LUTs, but if you check “Keep LUT” when you open the second image (which must be
