What is Image Compression?

All file for digital pictures store relevant information relating to brightness, contrast, position and color of the level of pixels that are supporting image creation. What compression system actually does is reordering as well as rationalizing the technique in which the information storage takes place. The end result is nothing but the file that is being optimized and lowered in size. Large amount of space can be saved by making proper identification of textures, brightness and color aligned within the images. Storage of the patterns at one time helps in its further usage where you can use the reference and perform rest of the tasks in an image. The process of recognition of pattern and file optimization is recognized as compression.

Process of Compression and Decompression are also referred as CODEC. It contains below mentioned 3 stages:

1. Algorithm is used for compressing the original image for the purpose of optimizing the file.

2. The version of tile that comes out is the one to be stored on your website or hard drive, wherever you require.

3. Compressed file that is the output is decompression available for editing or viewing.

If the decompressed output is exactly what the original file is even after decompression then the process is referred as ‘Lossless’. And if few of the information is lost during the way then is can called as ‘Lossy’. Lossless systems generally result in reducing the file up to 60% of the real size whereas less that 1% is the amount for reduction in lossy compression.