The embodiment of the invention provides a monochrome image compression method and device, a medium and electronic equipment. The monochrome image compression method comprises the following steps: acquiring the pixel information of a target image to be compressed; dividing multiple pixel points with the same color values and continuous addresses into pixel groups according to the pixel informationof the target image to obtain at least one pixel group; and sequentially storing the pixel data of the pixel groups and storing the pixel points of a non-pixel group in the pixel information to generate the compression data of the target image. Through the adoption of the technical scheme, the space can be saved, and the compression efficiency is improved.

Monochrome image compression method and device, medium and electronic equipment

The invention belongs to the field of image processing, and particularly relates to a novel BMP image compression system and a method. The method comprises the following specific steps: importing a color image; compressing the color image to obtain 16-bit data; adding a zone bit to the compressed data to obtain new 24-bit data; polling and comparing whether the new 24-bit data of all the pixel points is equal or not; if yes, continuous equal compression and line feed zero filling are conducted, the zone bit is automatically increased by 1, and the highest position is 0; otherwise, carrying outcontinuous unequal compression and line feed zero filling, wherein the highest position is 1; judging whether all pixel points are compressed; if yes, displaying the data before and after compression, storing the data in a bin file, decompressing the data, and displaying the decompressed image; otherwise, continuing to judge the adjacent pixel points to perform data compression; the method has the advantages that the compression algorithm ensures the accuracy of color rendition while the length of the compressed data does not exceed the original data, the algorithm is simple, and compared with a traditional compression algorithm, the compression efficiency and reliability of the compression algorithm are both improved.

Novel BMP image compression method and system

The invention discloses image coding and decoding methods and devices The coding method comprises the steps of recording the number of pixels on each dimension of an image; replacing the continuous repeating pixels having the same values with single pixel values and string lengths; judging whether the pixels are the isolated pixels which appear continuously and of which the numbers of repeating times are one, if yes, only storing the specific isolated pixels, and accumulating the number of the continuously appearing isolated pixels, and if no, reserving the string lengths and the pixel values of the parts, and storing the accumulated number of the isolated pixels The decoding method comprises the steps of decoding the isolated pixels into a format where the string lengths are added with the pixels, reading the corresponding number of isolated pixels according to the accumulated continuous number and combining with the repeating pixels in an alternative manner; recovering the repeating format of the pixels according to the string lengths and the pixels; and recovering an original distribution format of the pixels according to the recorded number of the pixels on each dimension of the image According to the methods and the devices provided by the invention, the problem that a conventional image high fidelity coding result is low in compression ratio

Image coding and decoding methods and devices

The invention relates to a compression algorithm for black and white dot matrix data in a power system protection device, which comprises the following steps: S01, reading original dot matrix data ofone byte, judging whether the current byte is 0x00 or 0xFF, if not, copying the read original data to a compressed data writing position, and if so, carrying out the next step; S02, copying the read original data into the compressed data, and starting counting, wherein the counting number is the number of the continuous original data which is the same as the original data of the current byte; andS03, when bytes different from the bytes of the original data in the step S02 are read, returning to the step S01. The algorithm is good in actual engineering application effect, the data volume is averagely reduced by 35%, and the data volume of an individual interface can be reduced by 99%.

Compression algorithm and decompression method for black and white dot matrix data in power system protection device

The invention discloses a bus bandwidth use peak value adjusting method, device and equipment and a readable storage medium The method disclosed by the invention comprises the following steps: receiving an instruction for adjusting bus bandwidth occupied by an image processing process; adjusting color parameters of a frame buffer memory according to the instruction; adjusting configuration parameters of the image processing module according to the color parameters; and processing the image transmitted to the frame buffer memory by using the adjusted color parameter and the adjusted configuration parameter so as to adjust the bus bandwidth occupied by the image processing process According to the invention, the bandwidth occupied in the image processing process is large; in order to prevent other functions from competing for bandwidth resources in the equipment with the image processing function, the bandwidth occupied in the image processing process is adjusted in real time accordingto needs, bus bandwidth resources in hardware equipment are balanced, and stable operation of the hardware equipment is guaranteed The bus bandwidth use peak value adjusting device and equipment andthe readable storage medium provided by the invention also have the above technical effects

Bus bandwidth use peak value adjusting method and device

The invention provides an image compression method and device based on run-length encoding (RLE). The image compression method includes that whether pixel values of adjacent pixels in an image to be compressed are identical is sequentially compared and judged, the zone bit in the pixel format is set to be the value adopting RLE and RLE is performed on yes judgment, otherwise the zone bit is set to be the value not adopting RLE and RLE is not performed; during decoding, whether RLE is adopted is judged according to the zone bit in the pixel format of a pixel to be decoded, and RLE is adopted on yes judgment; and the zone bit is the bit with the smallest color display influence caused by G in the red, green and blue (RGB) pixel format. The image compression method and device can solve the problem of the traditional RLE algorithm of data quantity increasing after coding on some conditions, reach a compression ratio larger than that of the RLE algorithm only by losing little pixel accuracy, and are simple and convenient due to the fact that only shifting and bit manipulation are adopted in the whole encoding and decoding processes.

Guo Haiyu

Papers

Image compression method and device based on run-length encoding (RLE)