A block compression method for fingerprint image storing

الملخص EN

Storage of fingerprint image databases needs allocation of huge secondary storage devices.

To reduce the increasing demand on storage space, efficient data compression techniques are badly needed.

In addition to that, the exchange of fingerprint images between governmental agencies could be done fast.

The compression algorithm must also preserve the original information in the original image.

Image compression is the application of Data compression on digital images.

In effect, the objective is to reduce redundancy of the image data in order to be able to store or transmit data in an efficient form.

It involves reducing the size of image data files, while retaining necessary information.

The reduced file is called the compressed file and is used to reconstruct the image, resulting in the decompressed image.

The original image file, before any compression is performed, is called the uncompressed image file.

This paper is concerned with compression method of fingerprint image without losing the important features of these images (lossless method), by using (2 × 2), (3 × 3) Block Compression Method.

This proposed method done by compressing the fingerprint (FP) image, and decompressing the image for the twice previous methods.

And then compare the result which come from experimental results for (size of image, quality of image, thickness of curve), and find the relationship between them.