Method and device for converting logical pictures into bmp pictures

Abstract

The invention relates to the technical field of image processing, in particular to a method and a device for converting a logic picture to a bmp picture. The method comprises the following steps of: reading code stream data of the logic picture, classifying the code stream data into a plurality of original encoded data streams, and extracting row coordinate sequences; parsing the plurality of theoriginal encoded data streams to generate a plurality of RGB color value data streams; combining three color components of R, G, and B in the plurality of the RGB color value data streams to generatea row data stream; combining the row data stream to form a data stream comprising all the different rows; and receiving data of one unit row, a coordinate position where the unit row is located, and acoordinate position where a row having the same content as the unit row is located, writing the data of the unit row to the coordinate position of the unit row and coordinate positions where rows having the same content as the unit row are located, and receiving data of the next unit row to continue writing. According to the method and the device for converting the logic picture to the bmp picture, the logic picture can be converted into the bmp picture, and the problems that a bmp picture occupies a large space and a logic picture cannot be directly displayed are solved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for converting a logic picture into a bmp picture. Background technique [0002] In recent years, due to the continuous development and progress of image technology, the amount of data contained in digital images is increasing day by day, and image processing algorithms are becoming more and more complex. Since the display can only directly display the content of bmp pictures, the original bmp pictures will take up a lot of space, 4K pictures (3840*2160, color 8bit) occupy 24.7MB space, 8K pictures (7680*4230, color 8bit) occupy 94.9MB space, 1 A 1GB memory can only store 41 4K pictures and 10 8K pictures, and storing bmp pictures will take up a very large memory space. The logic picture is a file generated by encoding after a collection of simple graphics containing various test indicators. It generally includes straight lines, dotted lines, rectang...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method and device for converting logical pictures into bmp pictures for the defect that logical pictures cannot be directly displayed and bmp pictures take up a large space in the prior art

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