3-D color histogram equalization by principal component analysis

The proposed method uses a one dimensional histogram for color HE.The proposed method applies equalization on a transformation of input image.The proposed method uses the projection of image on the first component of PCA.The resulted images of the proposed method are free from brightening.The resulted mean brightness differences are not very significant. Color histogram equalization is a method for improving visual appearance of images by enhancing image contrast. Color histogram equalization methods are mostly faced with problems like over-enhancement and brightening. In this paper a new color histogram equalization method is proposed which defines a new three dimensional cumulative distribution function based on a one-dimensional histogram. This one-dimensional histogram is calculated by taking into account the correlation between color channels using PCA. Over-enhancement and brightening are solved by this method because of applying the equalization on a transformed image instead of image itself.

[1]  Ioannis Pitas,et al.  Multichannel techniques in color image enhancement and modeling , 1996, IEEE Trans. Image Process..

[2]  Panos Trahanias,et al.  Color image enhancement through 3-D histogram equalization , 1992, Proceedings., 11th IAPR International Conference on Pattern Recognition. Vol. III. Conference C: Image, Speech and Signal Analysis,.

[3]  Qian Du,et al.  Low-Complexity Principal Component Analysis for Hyperspectral Image Compression , 2008, Int. J. High Perform. Comput. Appl..

[4]  Jeffrey J. Rodríguez,et al.  A multivariate contrast enhancement technique for multispectral images , 1995, IEEE Trans. Geosci. Remote. Sens..

[5]  Robin N. Strickland,et al.  Digital Color Image Enhancement Based On The Saturation Component , 1987 .

[6]  A.C. Kokaram,et al.  N-dimensional probability density function transfer and its application to color transfer , 2005, Tenth IEEE International Conference on Computer Vision (ICCV'05) Volume 1.

[7]  Guillermo Sapiro,et al.  Color histogram equalization through mesh deformation , 2003, Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429).

[8]  Arthur R. Weeks,et al.  Histogram specification of 24-bit color images in the color difference (C-Y) color space , 1999, J. Electronic Imaging.

[9]  Haidi Ibrahim,et al.  Brightness Preserving Dynamic Histogram Equalization for Image Contrast Enhancement , 2007, IEEE Transactions on Consumer Electronics.

[10]  Constantine Kotropoulos,et al.  Color image histogram equalization by absolute discounting back-off , 2007, Comput. Vis. Image Underst..

[11]  C. A. Murthy,et al.  Hue-preserving color image enhancement without gamut problem , 2003, IEEE Trans. Image Process..

[12]  Zhongfu Ye,et al.  Flattest histogram specification with accurate brightness preservation , 2008 .

[13]  Haidi Ibrahim,et al.  Bi-histogram equalization with a plateau limit for digital image enhancement , 2009, IEEE Transactions on Consumer Electronics.

[14]  Qiang Zhang,et al.  3-D histogram modification of color images , 1996, Proceedings of 3rd IEEE International Conference on Image Processing.

[15]  J. Facon,et al.  A Fast Hue-Preserving Histogram Equalization Method for Color Image Enhancement using a Bayesian Framework , 2007, 2007 14th International Workshop on Systems, Signals and Image Processing and 6th EURASIP Conference focused on Speech and Image Processing, Multimedia Communications and Services.

[16]  Sejung Yang,et al.  A Novel 3-D Color Histogram Equalization Method With Uniform 1-D Gray Scale Histogram , 2011, IEEE Transactions on Image Processing.

[17]  Sanjit K. Mitra,et al.  A new algorithm based on saturation and desaturation in the xy chromaticity diagram for enhancement and re-rendition of color images , 2001, Proceedings 2001 International Conference on Image Processing (Cat. No.01CH37205).

[18]  I. M. Bockstein.  Color equalization method and its application to color image processing , 1986 .

[19]  I. Jolliffe.  Principal Component Analysis , 2002 .

[20]  A. K. Forrest.  Colour histogram equalisation of multichannel images , 2005 .

[21]  P. A. Mlsna,et al.  A recursive technique for 3-D histogram enhancement of color images , 1996, Proceeding of Southwest Symposium on Image Analysis and Interpretation.

[22]  Taemin Kim,et al.  Colour histogram equalisation via least-squares fitting of isotropic Gaussian mixture to uniform distribution , 2006 .