| 摘要 |
An image forming device includes: a rasterizing section, a resolution converting section and a thinning section. The rasterizing section generates, by rasterization, image data having any one of standard resolution, resolution higher than the standard resolution and resolution lower than the standard resolution. The resolution converting section converts the resolution upon rasterization for the generated image data having the higher or lower resolution than the standard resolution into the standard resolution. The thinning section thins the image data having the standard resolution. When thinning the image data of which the resolution is converted higher than upon rasterization in the resolution converting section, the thinning section adjusts thinning strength to become larger upon thinning than when thinning the image data of which the resolution upon rasterization is kept as it is. |
| 主权项 |
1. An image processing device, comprising:
a central processing unit (CPU) that:
generates, by rasterization, image data having any one of a standard resolution, a resolution higher than the standard resolution, and a resolution lower than the standard resolution;converts a resolution of the generated image data into the standard resolution, when the image data has the resolution higher or lower than the standard resolution; andthins the image data having the standard resolution, wherein when thinning the image data whose resolution has been converted into the resolution higher than the resolution at a time of rasterization, the CPU makes a thinning strength larger than a thinning strength in a case of thinning the image data whose resolution has not been converted, the CPU detects an edge of an object forming a specific pattern in the image data before resolution conversion when converting the resolution of the image data higher than upon rasterization, and adds a pixel value to each of background pixels in the image data after resolution conversion; and the CPU makes the thinning strength larger when thinning the image data whose resolution has been converted higher than upon rasterization and to which the pixel value is added upon resolution conversion. |
