Abstract: A method of extracting a textual area in a digital image, in which the digital image is divided into a plurality of blocks, each being computed to obtain a number of edges, each having a higher contrast in the block at a horizontal direction and a vertical direction. Based on the determined edge number, a plurality of textual blocks are determined out of the plurality of blocks in the digital image and the corresponding textual areas may be extracted from the digital image, so that the textual area and a continuous pictorial area in the digital image may be processed separately.

Abstract: A method for compressing and decompression digital image data. When compressing, the method begins by choosing a reference row. The relative data between the reference row and the current row is compared to search for the differential data set. The largest matching data set of the differential data set is searched starting from the starting position of the last differential data set. According to the matching conditions, the data type of the to-be-compressed data is first verified, then the to-be-compressed data set type and its relative referencing value are verified. Finally, the relative coding process is started. This process has a higher compression ratio and decompression speed, and increases the compression speed dramatically.

Abstract: A method of extracting a textual area in a digital image, in which the digital image is divided into a plurality of blocks, each being computed to obtain a number of edges, each having a higher contrast in the block at a horizontal direction and a vertical direction. Based on the determined edge number, a plurality of textual blocks are determined out of the plurality of blocks in the digital image and the corresponding textual areas may be extracted from the digital image, so that the textual area and a continuous pictorial area in the digital image may be processed separately.

Abstract: A high-speed color match processing system and the method thereof convert RGB values into CMYK values and store them in a storage module. According to a conversion start command, the key words of RGB values of all pixels in the current digital picture are extracted. The corresponding CMYK values are searched using the key words in the storage module. The RGB values are then converted into the CMYK values.

Abstract: A memory management method for a MFP is disclosed. First of all, receive a request of executing an appointed function and then check available memory for executing such request. If the available memory is not enough for the job, then indicate this situation. Close at least one presently idle function to release its corresponding memory. Allocate the released memory for execution of the appointed function. After the appointed function has been finished, the closed function is re-opened. Thereby, the memory can be flexibly allocated as desired without manual operation.

Abstract: A method for enhancing text image is applicable to a digital image containing monochrome text. The method is first to label text pixels and to-be-determined pixels according to grayscales of the image pixels. Then, to identify some mostly-be text pixels, smooth them into text pixels; and look for text edge pixels from the rest of the to-be-determined pixels, and fill the text pixels to enhance contrast of text and background. The zigzags are thus removed and the text clearness is improved.

Abstract: A method for compressing and decompression digital image data. When compressing, the method begins by choosing a reference row. The relative data between the reference row and the current row is compared to search for the differential data set. The largest matching data set of the differential data set is searched starting from the starting position of the last differential data set. According to the matching conditions, the data type of the to-be-compressed data is first verified, then the to-be-compressed data set type and its relative referencing value are verified. Finally, the relative coding process is started. This process has a higher compression ratio and decompression speed, and increases the compression speed dramatically.