A new approach for optical colored image compression using the JPEG standards

Image compression consists in reducing information volume representing an image. Elimination of redundancies and non-pertinent information enables memory space minimization and thus faster data transmission. The present work aims to improve the quality of the compressed image while minimizing the time required for compression by using the principle of coherent optics. We present an optical adaptation of the method of JPEG compression technique for binary, gray-level and color images. Illustrative simulations will be given at the end to validate our architecture and to evaluate the performance on different types of images (binary, gray and color). An optical implementation setup is proposed and validated experimentally.

[1]  J. Goodman Introduction to Fourier optics , 1969 .

[2]  Ayman Al Falou,et al.  Implementation of an all-optical image compression architecture based on Fourier transform which will be the core principle in the realisation of the DCT , 2005, SPIE OPTO-Ireland.

[3]  Emmanouil E. Kriezis,et al.  A numerical study of optical switches and modulators based on ferroelectric liquid crystals , 2005 .

[4]  Khalid Sayood,et al.  Lossless compression of RGB color images , 1995 .

[5]  Hong Yan,et al.  Reducing artifacts in block-coded images using adaptive constraints , 2003 .

[6]  Fu Yao,et al.  Image quality evaluation based on image weighted separating block peak signal to noise ratio , 2003, International Conference on Neural Networks and Signal Processing, 2003. Proceedings of the 2003.

[8]  E. Dubois,et al.  Digital picture processing , 1985, Proceedings of the IEEE.

[9]  Sunanda Mitra,et al.  Performance of lossy compression algorithms from statistical and perceptual metrics , 1999, Proceedings 12th IEEE Symposium on Computer-Based Medical Systems (Cat. No.99CB36365).

[10]  Chau-Jern Cheng,et al.  Optical image encryption based on polarization encoding by liquid crystal spatial light modulators , 2004 .

[11]  Ofer Hadar,et al.  Modulation transfer function as a quality measure for compressed images transmitted over a lossy packet network , 2001 .

[12]  Azriel Rosenfeld,et al.  Digital Picture Processing , 1976 .

[13]  H. B. Mitchell,et al.  Adaptive intercolor error prediction coder for lossless color (RGB) picture compression , 2001 .

[14]  Joan L. Mitchell,et al.  JPEG: Still Image Data Compression Standard , 1992 .