Created Friday 17 February 2023
Image compression is a technique that reduces the size of an image without losing too much detail or quality. The goal of image compression is to make the file smaller, so it can be easily shared and stored, without sacrificing too much of the visual information.
The basic idea behind image compression is to remove redundant or unnecessary information from the image. This is done by taking advantage of the fact that most images have a lot of repeating patterns and colors, and by using mathematical algorithms to represent those patterns and colors in a more efficient way.
One common approach to image compression is called "lossy compression." In this technique, the image data is analyzed and then selectively discarded based on its perceived importance to the overall image quality. For example, some of the high-frequency details that are less important to the overall image may be removed, while the overall color and shape of the image are preserved.
Another approach to image compression is called "lossless compression." In this technique, the image data is compressed without any loss of quality or information. This is achieved by finding patterns and redundancies in the image data, and then using mathematical algorithms to represent those patterns more efficiently. The resulting compressed file can be decompressed back to its original state without any loss of information.
Overall, image compression is a very useful technique that allows us to share and store images more efficiently, without losing too much of the original image quality.