This article mainly introduces the PHP implementation of compressed image size and into a JPG format, involving PHP for image reading, calculation, conversion, output and other related operations skills, the need for friends can refer to the
GIF picture format 1987 births, often used for Web animation, using lossless compression, support 256 colors (commonly called 8 bit color). It has the lowest color effect, and generally colorful pictures are not saved with GIF. GIF is divided into
Android photo wall full version, perfect combination of LruCache and DiskLruCache
In the previous article, we learned the concept and basic usage of DiskLruCache, but it is obviously not enough to grasp the theoretical knowledge. In this article,
Specifications/inches/cmThe data table (in inches) of the maximum number of photos that can be rinsed by a digital camera calculated based on 150ppi)5 million pixels valid 4915200, pixels 2560x1920. Portable Photo size: 17X13, 21-inch diagonal line4
JPG
1. jpg full name should be JPEG JPEG images store a single grating image in 24-bit color. JPEG is a platform-independent format that supports the highest level of compression. However, this compression is lossy. Gradient JPEG files
What format is PNG? This question is one of the most frequently asked questions of many computer novices. Well, given the number of novice computers, let's explain what the PNG format is. In fact, the answer is very simple, we just know that the
We know that images play a very important role in the process of making webpages. although the network speed is getting faster and faster, the image size is too large, which is one of the most important reasons for slow webpage loading. which of the
We know that images play a very important role in the process of making webpages. Although the speed of the network is getting faster and faster, the image size is still one of the most important reasons for slow webpage loading.
Which of the
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