Win8.1 double sword combination

Computer Store News: There are still weeks away from the official launch of Windows 8.1 (October 18), but Microsoft has begun to build momentum for the new operating system.

In the IE blog, Microsoft announced some improvements in IE11. The new version uses a new algorithm when reading images. The download and rendering speeds are faster, and the JPG file is opened faster than the old one. The version has increased by 45%. The browser has 61% of the time spent on images in the process of opening the webpage, and 47% of the image files are JPG files, so the processing of JPG can effectively improve the rendering speed of the webpage.

IE11 uses a new color component reading method to read the RGB color of an image, and then acquire and combine images by chroma sampling compression, discrete cosine transform, quantization and Huffman encoding. , the three primary colors are processed in parallel.

As a result, the computing power of the computer GPU can be utilized as much as possible, reducing the conversion steps of the CPU from CbCr to RGB color, thereby effectively improving the speed of image decoding and rendering, and the decoding speed is as high as possible. 17.9ms, drawing speed 57.5ms.