Near-Lossless Color Image Compression with No Error Accumulation in Multiple Coding Cycles
نویسندگان
چکیده
The paper comprises study on accumulation of errors produced by near-lossless JPEG-LS in the consecutive compression-decompression cycles. Paper proves that alternatively, lossless compression can be performed on luminance and chrominance with reduced representation bit numbers. The advantage is that the errors do not accumulate in the consecutive cycles of compression because rounding errors of the RGB fi YCRCB fiRGB transformation do not accumulate in the consecutive transformation cycles. Exemplary experimental data that verify these statements are included in the paper.
منابع مشابه
Lossless and near-lossless image compression with color transformations
A comparison of lossleess compression results is given for RGB, YCRCB and reversible JPEG 2000 color space. The paper describes the general conditions that rounding errors of a color transformation do not cumulate in the consecutive cycles of forward and inverse transformation. In particular, rounding errors of the RGB → YCRCB → RGB transformation do not accumulate in the consecutive transforma...
متن کاملNear-Lossless Color Image Compression for Multimedia Applications
A near lossless image compression method is proposed. Since color transformation characteristics is exploited, saturation of error accumulation is achieved.
متن کاملSimple fast and adaptive lossless image compression algorithm
In this paper we present a new lossless image compression algorithm. To achieve the high compression speed we use a linear prediction, modified Golomb–Rice code family, and a very fast prediction error modeling method. We compare the algorithm experimentally with others for medical and natural continuous tone grayscale images of depths of up to 16 bits. Its results are especially good for big i...
متن کاملفشردهسازی تصویر با کمک حذف و کدگذاری هوشمندانه اطلاعات تصویر و بازسازی آن با استفاده از الگوریتم های ترمیم تصویر
Compression can be done by lossy or lossless methods. The lossy methods have been used more widely than the lossless compression. Although, many methods for image compression have been proposed yet, the methods using intelligent skipping proper to the visual models has not been considered in the literature. Image inpainting refers to the application of sophisticated algorithms to replace lost o...
متن کاملAn Enhanced Lossless Image Compression Based on Hierarchical Prediction Context Adaptive Coding
To display high bit resolution images on low bit resolution displays, bit resolution needs to be reduced. Towards achieving a reduced bit rates and high compression gain, an enhanced method for compression of various color images are presented, which is based on hierarchical prediction and adaptive coding. An RGB image is first transformed to YCbCr by a reversible color transform and a various ...
متن کامل