38 results about "WebP" patented technology

The embodiment of the invention discloses a network picture access method. The method includes the steps that a preset standard picture in the Webp format is acquired, and the attribute value of at least one attribute of the standard picture is extracted; the standard picture is loaded and rendered; whether the attribute value of the attribute extracted before the standard picture is loaded and rendered is the same as the attribute value of a corresponding attribute after the standard picture is loaded and rendered or not is judged, if yes, an access request for access to a network picture in the Webp format is sent, and a response message for returning the network picture in the Webp format is received so as to achieve access; if not, an access request for access to the network picture in a supported format different from the Webp format is sent, and a response message for returning the network picture in the corresponding format is received so as to achieve access to the network picture. The embodiment of the invention further discloses a network access request response method and a device and system corresponding to the method. Through the network picture access and access request response method and the device and system corresponding to the method, the network picture access (response) efficiency can be improved.

The invention discloses a webp image coding method. Device and electronic equipment, The method comprises the following steps of: obtaining image data in a Webp format, and segmenting the image data to obtain a Y component, a U component and a V component, carrying out parallel coding processing on the Y component, the U component and the V component through an FPGA to obtain a coding Y component,a coding U component and a coding V component, and obtaining image coding data according to the coding Y component, the coding U component and the coding V component. The Y component, the U componentand the V component are respectively processed by adopting a parallel mode through the FPGA, so that the coding effect is good, and the real-time performance of coding the webp format image is improved. The technical problems that in the prior art, the encoding speed of the image in the webp format is low, and the real-time performance and bandwidth requirements are difficult to meet are solved,and the technical effects that the encoding effect is good, and the real-time performance of encoding the image in the webp format is improved are achieved.

The application discloses a method, device and medium for verifying the integrity of a WebP picture, and relates to the field of computer technology. The method includes: reading the file bytes of the WebP picture file, dividing the file bytes into multiple byte groups according to the order of the file bytes and a preset integrity judgment template; determining the verification type of each byte group , determine whether to convert the byte group into a positive integer according to the check type; if not, then according to the position of the byte group in the file byte, compare the byte group with the byte at the corresponding position in the integrity judgment template If necessary, convert the byte group into a positive integer, and according to the position of the byte group in the file byte, compare the positive integer with the verification parameters of the WebP image file to determine the byte group integrity. Before decoding the WebP picture file, this application first judges its integrity, and only actually decodes the complete WebP picture file, so as to improve the decoding efficiency.

This application discloses a method for WebP file conversion, including setting the conversion operations of each step of converting a source format image file into a WebP file as a corresponding execution queue, so that each execution queue can be executed relatively independently; Set the number of threads; when receiving the source format image file stream, execute all execution queues in parallel to obtain the corresponding WebP file stream. In this method, each step of conversion operation is set as a corresponding execution queue, and a preset number of threads are assigned to each execution queue. When the source format image file stream is received, all execution queues are executed in parallel to obtain the corresponding WebP file stream. The execution efficiency of the entire processing process of converting source format image files into WebP format files is greatly improved. At the same time, the present application also provides a WebP file conversion device, device and computer-readable storage device, which have the above-mentioned beneficial effects.

The invention discloses a WebP compression parallel acceleration method and a device based on an OpenCL (Open Computing Language). The method comprises steps: an image is rotated, macro blocks in an ith column in the image are down moved for i-1 rows, blank macro blocks are added at the rest positions, and a rotating image with n(m+n 1) macro blocks is acquired, wherein n is the column number of the image and the rotating image, m is the row number of the image, i is a positive integer no less than 0 but no more than n, and m+n 1 is the row number of the rotating image; according to the known macro block boundary data and / or macro block boundary data stored in a cyclic buffer area in a local memory in the OpenCL, parallel data coding is sequentially carried out on the macro blocks in each row of the rotating image; and the macro block boundary data acquired when the macro blocks of the image are subjected to data coding are stored to corresponding positions in the cyclic buffer area. The storage space needed by the macro block boundary data is greatly reduced, the macro block boundary data are stored in the local memory, and access to global memory is avoided.

The present invention provides a method and device for generating a dynamic webp format picture. The method includes: acquiring a pending task for generating a dynamic webp format picture, and the pending task at least includes: a plurality of first static pictures, the number of supplementary frames , output size and number of cycles; set multiple first static pictures as transparent and set the size of multiple first static pictures as output size to obtain multiple second static pictures; generate webp objects according to the number of cycles; sequentially To each group of the second static pictures, the complementary frame picture generation step is performed to generate the complementary frame numbers of the second static pictures of each group; webp object to generate dynamic webp format pictures. Users are not required to make complementary frame pictures frame by frame, which reduces the production difficulty and production cost of dynamic webp format pictures.

The invention discloses an image processing method, device, device and computer-readable storage medium based on a WebP image compression algorithm, comprising: acquiring a plurality of Y macroblocks, a plurality of U macroblocks and a plurality of U macroblocks in the YUV image data of the image to be processed Z macroblocks; according to the dependencies between macroblocks, reorganize the traversal order of sub-blocks in multiple Y macroblocks, multiple U macroblocks, and multiple V macroblocks; reorganize the sub-block traversal order of each Y macroblock and the U macroblock and V macroblock of the image area where the Y macroblock is located are combined to obtain the target macroblock of the image area where the Y macroblock is located; according to the dependency relationship between the target macroblocks, the The traversal order of the sub-blocks is reorganized, and the sub-blocks in each target macroblock are traversed according to the reorganized order to obtain the brightness and chrominance of the image to be processed. The image processing method, device, equipment and computer-readable storage medium provided by the present invention realize parallel processing among Y macroblocks, U macroblocks, and V macroblocks.