发明授权
US5565907A Image forming apparatus capable of producing high quality halftone images 失效
能够生产高质量半色调图像的图像形成装置

Image forming apparatus capable of producing high quality halftone images
摘要:
An image forming apparatus capable of producing a high quality halftone image stably and rendering faithful tonality. For a bilevel image, the apparatus smooths the boundary between black and white. For a multilevel image, the apparatus obviates solitary dots for thereby causing dots to concentrate. As a result, a bilevel image and a multilevel image are provided with a clear boundary.
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