How do you calculate data compression?
To determine the compression ratio, divide the size of outputFile value by groupPages value.
For example, if the size of outputFile value is 40 000 bytes and the size of the group of pages is 200 000 bytes, then the compression ratio is 40000/200000 or 0.20 (5:1 compression)..
How much data can be compressed?
If the typical data distribution skews away from the data that was sampled when the dictionary was created, compression ratios can decrease.
The maximum compression ratio is 90 percent..
Image compression techniques
There are two types of compression: lossless and lossy.
Lossless compression algorithms reduce the size of files without losing any information in the file, which means that we can reconstruct the original data from the compressed file..
Image compression techniques
You cannot always accurately estimate the compression ratio by simply examining the data.
On average, you can expect to achieve between 2:1 and 15:1 compression for AFP documents and up to 30:1 compression for line data reports..
What is file size compression?
A file reduced in size through the application of a compression algorithm, commonly performed to save disk space.
The act of compressing a file makes it unreadable to most programs until the file is uncompressed..
