摘要:
Even when a jaggy occurs in an original image, the image is accurately enlarged and a good image cannot be obtained as a result. In the case of performing pixel interpolation on an image in a dot matrix state, image data is entered in step 100, the whole image is scanned while shifting a marked pixel, and whether or not an edge exists in the direction of 45 or 135 degrees by using the marked pixel as a reference is detected in step 115. When an edge at 45 or 135 degrees exists, the edge is smoothed in the direction of either 45 degrees in step 120 or 135 degrees in step 125. After that, pixel interpolation is carried out irrespective of the presence or absence of an edge. Consequently, when there are irregular edges, it can be prevented that an image is directly subjected to pixel interpolation and a jaggy occurs.
摘要:
The user needs the skill to select a pixel interpolating process and a gradation converting process and it is difficult to select an optimum process adapted to desired printing quality. In a printing system using a computer system (10), by allowing a factor such as printing paper which exerts an influence on printing quality to be selected (step 400), the printing quality is estimated from the selected printing paper, a proper printing control which is preliminarily made correspond is selected (step 410), and a process is branched so as to execute the selected printing control (steps 420 to 450, steps 460 to 480), thereby enabling an optimum printing control to be performed.