Future lessons will cover a variety of compression schemes, including: The programs that I will provide in these lessons are provided for educational purposes only.If you use these programs for any purpose, you are using them at your own risk.If you take pictures with a digital camera, you are creating files that describe images using the JPEG image compression format.You may be able to adjust the parameters on your camera to provide a tradeoff between image quality on one hand and image compression on the other.Item Price: .00 At present Amazon gift card is the only method of payment we are accepting.Send a Amazon e-gift card to [email protected] email: [email protected] THE PAYMENT: Send Instant delivery Email amazon gift card Instructions: The picture below explains what to do on the next page.This is the first lesson in a new series of lessons that will teach you about data and image compression.The series begins with the Lempel-Ziv Lossless Data Compression Algorithm, commonly known as LZ77.
According to Wikipedia, "DEFLATE is a lossless data compression algorithm that uses a combination of the LZ77 algorithm and Huffman coding.
LZ77 is the name commonly given to a lossless data compression algorithm published in papers by Abraham Lempel and Jacob Ziv in 1977.
This algorithm forms the basis for many LZ variations including LZW, LZSS and others. What this means is that if you compress a document using the algorithm, and then decompress the compressed version, the result will be an exact copy of the original document. The JPEG image compression algorithm, for example, does not produce an exact copy of an image that has been compressed using the algorithm.
As mentioned above, LZ77 is the name commonly given to a lossless data compression algorithm published in papers by Abraham Lempel and Jacob Ziv in 1977.
The Java program named LZ77v01 that I will present and explain in this lesson implements a very close approximation to the LZ77 compression algorithm.