A new partial image encryption method for document images using variance based quad tree decomposition
نویسندگان
چکیده
منابع مشابه
Quad-tree Decomposition Based Image Analysis Using Intensity Difference Threshold
The watermark bit assignment controls the watermark embedding strength and the bit plane selection. Quad-tree decomposition is used as analysis technique which involves subdividing of image into blocks that are more homogeneous in comparison to the image itself. This technique gives the information about the structure of the image. This is the first step in adaptive compression algorithms. For ...
متن کاملA New Method for Encryption of Color Images based on Combination of Chaotic Systems
This paper presents a new method for encryption of color images based on a combination of chaotic systems, which makes the image encryption more efficient and robust. The proposed algorithm generated three series of data, ranged between 0 and 255, using a chaotic Chen system. Another Chen system was then started with different initial values, which were converted to three series of numbers from...
متن کاملRegion Quad-Tree Decomposition Based Edge Detection for Medical Images
Edge detection in medical images has generated significant interest in the medical informatics community, especially in recent years. With the advent of imaging technology in biomedical and clinical domains, the growth in medical digital images has exceeded our capacity to analyze and store them for efficient representation and retrieval, especially for data mining applications. Medical decisio...
متن کاملFractal Image Compression Using Quad Tree Decomposition & DWT
Image compression plays an important role in our day to day activities. Image compression is the process of reducing the amount of data required to represent given quantity of information in image to reduce storage requirements and many other reasons. In a computer image is represented as an array of numbers, integers and is known as digital image. Image array is mainly of two dimensional and t...
متن کاملQuad Tree Decomposition Based Analysis of Compressed Image Data Communication for Lossy and Lossless Using WSN
The Quad Tree Decomposition based performance analysis of compressed image data communication for lossy and lossless through wireless sensor network is presented. Images have considerably higher storage requirement than text. While transmitting a multimedia content there is chance of the packets being dropped due to noise and interference. At the receiver end the packets that carry valuable inf...
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 Electrical and Computer Engineering (IJECE)
سال: 2020
ISSN: 2088-8708,2088-8708
DOI: 10.11591/ijece.v10i1.pp786-800