38 results about "WebP" patented technology

The embodiments of the invention disclose a method, a device and a system for implementing a WebP lossy compression algorithm based on an FPGA heterogeneous acceleration platform. The method comprises the following steps: receiving image data information sent by a host, and saving the image data information to a cache, wherein the image data information is YUV image data information, and the cache is set up in advance by the host; calling a WebP lossy compression algorithm implemented by an FPGA hardware circuit according to a start instruction sent by the host, carrying out compressed encoding on the image data information according to the WebP lossy compression algorithm to get processed image data, and saving calculated image data to the cache; and returning calculation completion information to the host to enable the host to read the calculated image data from the cache after receiving the calculation completion information. The compression speed is increased and the power consumption is reduced to a certain extent during use.

The invention discloses an acceleration method, apparatus and system of a webp compression algorithm at the intra-frame prediction stage, and is used for a data center server. The method includes: obtaining a picture with a webp format at a CPU terminal, dividing the picture into macro-blocks of the preset size, and recording position information thereof; selecting a to-be-predicted macro-block as a current block, determining whether the coded macro-block exists at the preset surrounding position of the current block according to the position information of the current block, and if yes, sending the current block and the coded macro-block to a computing chip; performing a plurality of preset prediction calculations by the computing chip according to the current block and the coded macro-block, obtaining a prediction result of each prediction calculation and distortion rates, and sending the prediction results and the distortion rates to the CPU; selecting the prediction result corresponding to the prediction calculation with minimum distortion rate as the code of the current block; and selecting the next current block in a continuous manner until the coding of all the macro-blocks in the picture is completed. According to the method, apparatus and system, logic judgment and vector calculation are distinguished and are separately processed by different chips so that the speed of intra-frame prediction is fast.

The invention discloses a picture resource loading method and device, a terminal and a storage medium, and belongs to the technical field of networks. The method comprises the steps: detecting a firstwebpage resource through a resource loader, wherein the first webpage resource is a webpage resource corresponding to a to-be-displayed webpage of a browser; if a resource loader is passed, detectingthat a first picture link exists in the first webpage resource; if the first webpage resource is not the WebP format picture and the browser supports display of the WebP format picture, replacing a first picture link in the first webpage resource with a second picture link to obtain a second webpage resource, wherein the first picture link refers to a picture link of a non-WebP format picture, and the second picture link refers to a picture link of the WebP format picture; and displaying a webpage corresponding to the second webpage resource through the browser according to the second webpageresource. According to the method, the resource loader can be configured for the browser, so the browser can load the WebP format picture, the universality is high, and certain safety is achieved.

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 invention discloses a picture processing method, which comprises the following steps of acquiring an original image, and carrying out virtual rotation on the original image in order to obtain a rotating image, wherein the rotating image comprises a plurality of macro blocks with no data dependence each other; sequentially acquiring Y channel data and UV channel data of each macro block, and carrying out macro block compression operation on the Y channel data and the UV channel data in order to obtain a compressed macro block; and acquiring a WebP picture according to boundary data of eachcompressed macro block. According to the picture processing method disclosed by the invention, the data dependence between the macro blocks of a WebP algorithm is removed by realizing virtual rotationof the image, and parallel data processing between the macro blocks of a WebP lossy compression algorithm is achieved; and through parallel processing of the Y channel data and the UV channel data, the efficiency of the WebP lossy compression is further improved. The invention further discloses a picture processing system, picture processing equipment and a computer readable storage medium, and the technical effects are also realized.

The invention discloses a Webp picture format conversion method. The method comprises the following steps: S1, receiving a picture file in a webp format uploaded by a user; S2, converting the picturefile in the webp format into canvas, and acquiring base 64 data through a canvas. ToData URL (Uniform Resource Locator); S3, assigning the base 64 data to the src attribute of the img label in the page to be displayed, and meanwhile, assigning the base 64 data to the href of the a label in the html page; and S4, obtaining a picture downloading instruction sent by the user, and generating and sending a target downloaded picture file to the user according to the obtained picture downloading instruction. By adopting HTML and JavaScript technology, the webp format picture file is uploaded, the picture format of the webp format picture file is converted on a webpage, and then general picture formats such as png and other format pictures are downloaded, so that a part of computers which cannotdirectly browse the webp format pictures can convert the webp format pictures into general formats and then browse the webp format pictures.

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 invention discloses a method for solving the problem of webp lag during Android TV playing, which comprises the following steps: calling a decoding module to decode a webp moving picture, carryingout secondary processing on decoded data to obtain original frame data, and transmitting the frame data to a data display module for rendering. Based on construction of a decoding module and a display module, on the basis of solving the problem that an existing webp moving picture is not played smoothly, the problems that an existing webp frame is high in invasiveness and large in size are solved, and a non-invasive solution is provided. The playing rendering effect of the webp moving picture is greatly improved, and the phenomenon that the playing of the webp moving picture is lagged and frames fall off is avoided.

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 JPEG to WebP image coding method. The method comprises the following steps: obtaining a JPEG file to be converted, and obtaining the JPEG image file data by parsing the JPEGfile to be converted; performing Huffman decoding on the JPEG image file data to obtain macroblock data of a frequency domain space; performing macroblock prediction on the frequency domain data, andselecting an optimal prediction mode of the macroblock; performing residual data calculation on the macroblock data of the frequency domain space according to the selected optimal prediction mode to obtain macroblock residual coefficient data; performing entropy encoding on the macroblock residual coefficient data of the frequency domain data space to obtain WebP image file data, and packaging theWebP image file data into a WebP image file format. By adoption of the JPEG to WebP image coding method, the complexity of the JPEG to WebP image coding algorithm is reduced, and the conversion performance is improved. In addition, the invention further provides a JPEG to WebP image coding apparatus having the above technical advantages.

The invention relates to the technical field of image processing, in particular to a Webp image compression heterogeneous system and method and a readable storage medium. The system comprises a processor unit and a plurality of acceleration function units in communication connection with the processor unit, wherein the acceleration function units are connected in parallel. The processor unit is used for analyzing the to-be-compressed image, judging whether the to-be-compressed image meets a preset acceleration processing condition or not, and if yes, calling the acceleration function unit in a current processing idle state; and the acceleration function unit is used for performing format processing on the to-be-compressed image to obtain a Webp image. According to the method, most of calculation parts in the image processing process are placed in the FPGA for parallel processing, so that a large number of task instructions can be executed in parallel at the same time, the FPGA can execute a large number of data throughput operations at the same time, the single-task processing duration can be greatly shortened, the Webp format processing efficiency is improved, and the image processing real-time performance is better.

The invention provides a method for optimizing the size of a picture based on a container environment, which comprises the following steps that: a picture processing container Ingresses-nginx intercepts a picture matched with a route according to a Lua script compiled in a layout file, calls a cwebp command to convert an original picture format into a picture in a Webp format, and returns the picture in the Webp format to a user; according to the method and the device, generation of the Webp picture in the container environment is realized, the size of the picture is optimized, network resources are saved, and meanwhile, development, operation and maintenance costs are reduced.

The invention discloses an image compression method applied to machine patrol picture uploading. The method comprises the following steps: 1, obtaining a target picture; 2, detecting whether the target picture needs to be compressed or not; 3, if the target picture needs to be compressed, judging whether the target picture can use a WebP compression method or not in a current application scene; if yes, selecting a WebP compression method and skipping to the step 5; 4, judging whether the Guetzli compression method can be used or not in the current application scene; if yes, a Guetzli compression method is selected; if not, selecting a Libjpg compression method; and 5, according to the size of the source image, selecting a compression parameter to carry out image compression to obtain a target compressed picture. The problems of compatibility, compression rate, picture quality and compression performance of a picture compression method under the application scene of machine patrol picture uploading are solved.

The embodiment of the invention provides a picture decoding method and a related product. The picture decoding method comprises the steps: obtaining a target picture, wherein the target picture is a picture in a webp format; processing the target picture into a to-be-processed video in a vp8 video format by utilizing a preset mode; and decoding the to-be-processed video by using a vp8 decoder to obtain a decoded picture corresponding to the target picture. Thus, the target picture is processed into the to-be-processed video in the vp8 video format, and then the to-be-processed video is decodedby using the vp8 decoder, so compared with decoding of the target picture in the webp format by using a CPU, the method is higher in decoding speed, and is higher in decoding efficiency.

The embodiment of the invention provides a webpage picture resource processing method and device, and the method comprises the steps of: acquiring a webpage application project sent by a user, carrying out the webp picture format conversion, and determining a corresponding cascading style resource file according to a webp picture file obtained after the picture format conversion; carrying out webp picture format compatibility detection on a hypertext markup language file of a webpage application project, and loading the cascading style resource file when it is detected that the current webpage application project supports a webp picture format; according to the method, the front-end application development efficiency and the website webpage performance can be effectively improved.

The invention provides a method and device for generating a dynamic webp format picture, and the method comprises the steps: obtaining a to-be-processed task used for generating the dynamic webp format picture, and the to-be-processed task at least comprises a plurality of first static pictures, the number of complementary frames, the output size and the number of cycles; setting the plurality of first static pictures to be transparent and setting the sizes of the plurality of first static pictures to be output sizes so as to obtain a plurality of second static pictures; generating a webp object according to the number of cycles; sequentially executing a complementary frame picture generation step on each group of second static pictures so as to generate complementary frame pictures corresponding to each group of second static pictures in the number of complementary frames; and sequentially adding each group of second static pictures and the frame supplementing pictures corresponding to the second static pictures in the frame supplementing number into the webp object to generate a dynamic webp format picture. And a user does not need to make a frame supplementing picture frame by frame, so that the making difficulty and the making cost of the dynamic webp format picture are reduced.

The invention relates to the technical field of image processing, in particular to a WebP compression algorithm-based multi-image processing FPGA acceleration method, which comprises the following steps: transmitting an image according to RGB three-channel data, and converting the image into corresponding YUV data; caching the YUV data generated by the corresponding pictures into an on-chip DDR cache, reading the data into a calculation module through bus data reading, reading the corresponding data from the on-chip DDR cache according to the processing progress of the plurality of pictures, and putting the corresponding data into a dependent data cache region; wherein the plurality of pictures correspondingly depend on a plurality of partitions of the data cache region, and when the calculation traversal of one YUV macro block of one picture is completed, performing macro block calculation traversal of the next picture, and switching in turn until all macro blocks of the batch of pictures are completely coded; according to the method, an effective acceleration scheme is provided, encoding is achieved in a parallel pipeline processing mode, the method is more efficient compared with serial processing on a CPU, the method is more suitable for processing the blocked closed-loop algorithm compared with the CPU, and the output frame rate of the whole WebP algorithm is increased.