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Method for sending bit mapped image by appending special code to text string and transmitting the text string separately from compressed residual image
Method for sending bit mapped image by appending special code to text string and transmitting the text string separately from compressed residual image
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机译:通过将特殊代码附加到文本串并与压缩残差图像分开传输文本串来发送位图图像的方法
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摘要
A method of transferring the digital representation of a bit- mapped image which includes the steps of: (1) identifying predefined patterns in the bit-mapped image data, and (2) transmitting pattern codes corresponding to those patterns to a receiving device. The identification of the patterns involves the partitioning of the bit-mapped image into a series of pattern cells and the scanning of those pattern cells to find preselected patterns. The preferred method of searching the pattern cells is based upon the use of a hashing function and hash tables. In response to the received pattern codes, the receiving device reconstructs the bit- mapped image associated with the pattern codes. After all patterns in the bit-mapped images are identified and sent to the receiving device, the non-recognized portions of the bit-mapped image are then sent. The overall bit-mapped image is recreated by combining the recognized patterns with the non-recognized portions in their original order.
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