Primax Electronics Ltd.

Chiung-Sheng Wang

Sung-Hui Lin

Hui-Jan Chien

Chih-Ping Chen

Tsai-Hsing Chen

Yu-Hsien Lin

Li-Kai Cho

An image scanner and a method for compensating image data are provided. By using both the X-axis calibration gain and the Y-axis calibration gain, the processing time period for compensating image data is reduced. In addition, no initial calibration and no warm-up calibration are required.

Image scanner and method for compensating image data

An image cropping process of a multifunction peripheral is provided. Firstly, a top edge endpoint of an object image is searched from a band image of an original image. Then, each band image of the original image is read to search the object endpoint coordinate of a to-be-printed object image zone. The object image zone is outputted to be printed. The image cropping process further provides a strategy for detecting spots in order to enhance the accuracy of searching the object image.

Image cropping process

An image processing method, for receiving an input image and separating pixels having text characteristics and pixels having figure characteristics, includes: applying a first filtering processing for the input image to derive a first image processing result; applying a second filtering processing for the first image processing result to derive a second image processing result, wherein a distribution of filtering parameters of the first filtering processing is different from a distribution of filtering parameters of the second filtering processing; deriving a set of first reference values according to the first image processing result and the second image processing result; and determining whether each pixel within the input image is a text pixel or a figure pixel according to at least the set of the first reference values and a predetermined threshold.

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Taipei, Taiwan

Chiung-Sheng Wang