Patent ID: 7916345

Claim:
An image processing apparatus that adjusts a width of a line image constituted by predetermined black pixels in a binary image including both white pixels and black pixels, comprising: a memory device, controlled by a processor, to store a first template for detecting a specific pixel that is an edge pixel of the line image and has a continuity with a specific black pixel, and a second template for detecting the edge pixel of the line image; a first determining section to determine whether or not a target pixel is the specific pixel, based on the first template stored in the memory device; a second determining section to determine whether or not the target pixel is the edge pixel, based on the second template stored in the memory device; and a line width adjusting section to adjust the width of the line image, in such a manner that the line width adjusting section converts the target pixel to a black pixel, when the first determining section determines that the target pixel is the specific pixel, while the line width adjusting section converts the target pixel to a white pixel, when the first determining section determines that the target pixel is not the specific pixel and the second determining section determines that the target pixel is the edge pixel.