Title :
Multispectral Images Compression Based on JPEG2000
Author :
Wei, Junxia ; Wei, Ruyi ; Gao, Xiaohui ; Duan, Xiaofeng
Author_Institution :
Key Lab. of Spectral Imaging Technol., Chinese Acad. of Sci., Xi´´an, China
Abstract :
Multispectral image compression which are based on the one-, two- and three-dimensional wavelet transforms has been existed in many papers. Existing image compression algorithms have proved to be very efficient in compressing these kinds of images. We adopted the principal component analysis,clustering and spectral angle cosine to classify and compress in spectral dimension.In this article, we present lossy compression based wavelet; the information loss is measured by Peak-Signal-to-Noise Ratio (PSNR). We introduce the spatial compression based on JPEG2000 and improved embedded zerotree (EZW) encoding. We use the different compression rate to compress image, when the compression rate is 10:1, subjective value and object value is optimal. Not only the single band, but also the composing image, the spectral curve is nearly same.
Keywords :
image coding; principal component analysis; wavelet transforms; JPEG2000; embedded zerotree encoding; image compression; lossy compression based wavelet; multispectral images compression; object value; principal component analysis; spatial compression; spectral angle cosine; spectral curve; spectral dimension; subjective value; wavelet transforms; Bit rate; Image coding; PSNR; Pixel; Transform coding; Wavelet coefficients;
Conference_Titel :
Information Engineering and Computer Science (ICIECS), 2010 2nd International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7939-9
Electronic_ISBN :
2156-7379
DOI :
10.1109/ICIECS.2010.5677876