Predictive Lossless Colour Image Compression using Arithmetic Operation
نویسندگان
چکیده
منابع مشابه
Predictive Lossless Color Image Compression using Arithmetic Operation
This paper describes a simple and efficient method of colour image compression/decompression using the fundamental application of subtraction and formation of a dynamic dictionary after three stages of subtraction. Pixels in different segments generated by a chosen mask window are adjusted such that after three stages of subtraction, either all zero or at most one non-zero element is left. The ...
متن کاملNew Methods for Lossless Image Compression Using Arithmetic Coding
Lossless image compression presents a unique set of challenges. Considerable research has already been done on lossless text compression [1,2,3,4,5]; all good methods found to date involve some form of moderately high-order exact string matching. However, this work cannot easily be carried over to lossless image compression, for two reasons: First, images are two-dimensional, so the contexts ar...
متن کاملLossless Image Compression Using Data Folding Followed By Arithmetic Coding
The paper presents a lossless image compression technique using the hybridization of two different entropy coding techniques. Initially data folding technique has been applied to the image. A row folding is applied on the image matrix followed by a column folding. Multiple iterations of this process is applied on the image. After completing the data folding process another entropy coding techni...
متن کاملPredictive codebook design for lossless image compression
This paper describes a new method for lossless image compression where relative pixel values of localized neighborhoods in test images are stored in a codebook. In order to achieve decorrelation of an image's pixels, each neighborhood of a pixel is assigned to a neighborhood in the codebook, and the diierence between the actual pixel value and the predicted value from the codebook is coded usin...
متن کاملLossless Image Compression using a
This paper describes a new straightforward technique for lossless image compression, entitled SPM (Simple Prediction Method), which results in compression ratios similar to those achieved by the most powerful techniques described in the literature. The predictive model used by the method is one in which the current point is predicted as a weighted average of the preceding neighbouring points. T...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2012
ISSN: 0975-8887
DOI: 10.5120/6102-8305