gray-scale digital images
Digital image watermarking by using intermediate significant bits in gray scale images
... these digital documents. So, digital watermarking can protect them from ...the digital watermarking methods have been identified as a possible solution to the copyright protection, and have become an ...
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Impulse Noise Reduction and Enhancement of Gray Scale and Color Images
... The main source of noise in digital images arises during image transmission. For instance, an image transmitted over a wireless network might be corrupted as a result of lighting or other atmospheric ...
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COMPARATIVE ANALYSIS OF BINARIZATION FOR GRAY-SCALED DIGITAL IMAGES
... Improved Document Image Binarization by using a combination of Multiple Binarization Techniques and Adapted Edge Information by B. Gatos, L. Pratikakis.This paper presents a new adaptive approach for document image ...
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Model to estimate the salt and pepper noise density level on gray-scale digital image
... From the statistical data obtained from the experi- ments, we use quadratic polynomial fitting according to the minimum mean square error criteria to the fitting all the first order entropy variation. Figure 3 shows the ...
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Automatic generation of digital terrain models from Cartosat-1 stereo images
... input images as “marker” and “mask” ...after gray scale reconstruction the upper part of the foreground regions are suppressed ...the gray scale reconstruction oper- ates ideally the ...
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Estimating Watermarking Capacity in Gray Scale Images Based on Image Complexity
... a digital image means finding how much information can be hidden in image without perceptible distortion, while maintaining watermark robustness against usual signal processing manip- ulation and ...
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Evaluation of Color Image Segmentation Novel Methods
... a digital image into multiple segments has wide applications, such as image retrieval, medical inspection, and computer forensics ...for gray scale images such as Histogram Thresholding, Edge ...
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A Robust DCT based Digital Image Watermarking using Random Mid band Coefficient Exchange Scheme for Gray Scale Images
... The middle-band frequencies (FM) of an 8x8 DCT block are shown in Figure 1. In this Figure, FL is used to denote the lower frequency components of the block and FH is used to denote the higher frequency components. FM is ...
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Performance Analysis of Average and Median Filters for De noising Of Digital Images
... in images from variety of ...both gray scale and color images And then both Averaging and Median Filtering techniques are applied to the noisy images using ...
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High Secure Gray Scale Images Sharing Using Visual Cryptography Secret Sharing Scheme
... Color Images Using Visual Cryptography And Digital Watermarking In today’s world of digital communication, as technology progresses, there is more and more attention required on image ...and ...
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Enhancement Techniques for Gray scale Images in Spatial Domain
... a gray scale range [0,L-1] where L= 2 k , k be the number of bits used for a pixel in ...256 gray levels are sufficient for recognizing most natural ...bit digital image shown in ...of ...
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MLP Neural Network to improve Digital Watermark detection in gray scale images
... aims digital watermark detection and blind threshold computing is proposed in [13], this model uses pre-processing tools such as pre-detection filtering and geometrical distortions ...
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A Novel Approach for Digital Image Encryption based on Pixel Explosion Techniques
... switching gray-code and pixel explosion based encryption system for digital images are presented in ...and gray-scale bitmap images varying in size, type, and classes of image ...
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Hybrid Regression Analysis based Technique for Removal of Impulse Noise from Gray Scale Images
... Noise is major limiting factor in digital images, due to noise quality of image is degrade. For improving quality of image filtering techniques are used. There are various filtering technique are reported ...
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Feature Analysis Of Skin Disease Images Using Various Techniques Of Digital Image Processing
... on digital images of the skin diseases in order to get the quality ...processed images are the candidate images to help the dermatologists to assess the diseases clearer and ...like ...
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Adaptive Thresholding for Edge Detection in Gray Scale Images
... Digital image processing is a subset of the electronic domain, wherein the image is converted to an array of small integers, called pixels, representing a physical quantity. Edges characterize boundaries and edge ...
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A New Correlation Reduction Approach for Digital Image Encryption based on Pixel Explosion Techniques
... To design a secured encryption scheme, it is not only vital to know how to manipulate/alter data within a cover image but also we need to know how to reconstruct the original information from manipulated/altered data of ...
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Contrast Enhancement in Gray-Scale Images Using Background Approximation by Blocks and Morphological Operations
... global properties of the image can not be properly applied in a local context. In proposed system, even though morphological contrast has been largely used, there are no methodologies from the point of view MM, capable ...
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Image Fusion Using Self Organizing Feature Map With Histogram Equalization
... The images are fused based on self organizing feature map (SOFM) with histogram ...fused images and are mostly dependent on the application they ...various images are fused. The proposed system of ...
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Implementation of ROI Based Baseline Sequential Adaptive Quantization
... color images to 8x8 block based DCT mostly applied for gray images, then we applied quantization for the DCT in zigzag ordering, and obtained entropy coding using Huffman tables in the encoding ...
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