Primax Electronics Ltd.

Tsai-Hsing Chen

Hui-Jan Chien

Ting-Yuan Cheng

Wu-Jie Liao

Sung-Hui Lin

Pai-Yu Tien

Chiung-Sheng Wang

Li-Kai Cho

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.

Image processing method and image processing apparatus

An image processing method for deriving text characteristic images from an input image includes: performing a plurality of edge detecting processes upon the input image to generate a plurality of edge images, respectively, and deriving a first text characteristic image according to the edge images. The image detecting processes include: performing a first edge detecting process upon the input image to derive a first edge image according to a first upper threshold and a first lower threshold, and performing a second edge detecting process upon the input image to derive a second edge image according to a second upper threshold and a second lower threshold.

Image processing method for deriving text characteristic image from input image and related apparatus

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Taipei, Taiwan

Tsai-Hsing Chen