Image processing apparatus, method, and computer program product

摘要

An image processing apparatus including a minimum selector, a maximum selector, and a detector for processing image data having a plurality of color components expressing the image. The minimum selector selects an image data of a minimum value color component from the image data having a plurality of color components. The maximum selector selects an image data of a maximum value color component from the image data having a plurality of color components. The detector detects an edge existing in the image based on the image data of two color components selected by the minimum selector and the maximum selector.