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2 International Letters of Chemistry, Physics and Astronomy

2 2015

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Steganography Based Human Skin Using Wavelet Transformation in RGB Image

Jamila H. S., Zeyad N. N.

International Letters of Chemistry, Physics and Astronomy

2015

Vol. 52

84--89

Steganography is the art and science that enables you to hide the data in certain communication such as (video, Audio, and image). Here it doesn't scramble the data and send it, but we hide it using a color image to hide the data at the Human skin color and doing that using the cropping phrase to get the required area to hide data. In this paper, we will use the Wavelet and slant, let to process the hiding in the blue band of the RGB image and apply the DWT (discrete wavelet transformation) to get the decomposed bounds of the Cover image to use it to hide the data of the (stage) image.

Edge Detection in Ultrasound Images Based on Modified Unsharp and Wavelet Transform Filters

Jamila H. S., Daraam B., Ali W. M.

International Letters of Chemistry, Physics and Astronomy

2015

Vol. 52

90--99

Some image processing applications like segmentation need effective techniques that work as edge detection and extraction, many filters in this field fail to achieve the desired result and consequently the further processing fails, so it is needed sometimes to modify a technique to work in robust and effective way. In ultrasound, although it is a common and real-time non-destructive test methods, but processing and analyzing such images require special filters and modifications to overcome some weakness sides in this field, especially when scanning objects comparable to the acoustic wavelength. In this paper, two modified filters were suggested, first one is two-step unsharp filter, in this techniques the image was enhanced twice the first time the edges that extracted from the original scaled image where added back to the image, and in the second time the same edges were added to the scaled enhanced image. The second technique is summarized as adding back the Low-High and High-Low bands that were extracted previously from the original image by Haar wavelet transform to the image which reinforce its edges. Some image processing applications like segmentation need effective techniques that work as edge detection and extraction, many filters in this field fail to achieve the desired result and consequently the further processing fails, so it is needed sometimes to modify a technique to work in robust and effective way. In ultrasound, although it is a common and real-time non-destructive test methods, but processing and analyzing such images require special filters and modifications to overcome some weakness sides in this field, especially when scanning objects comparable to the acoustic wavelength. In this paper, two modified filters were suggested, first one is two-step unsharp filter, in this techniques the image was enhanced twice the first time the edges that extracted from the original scaled image where added back to the image, and in the second time the same edges were added to the scaled enhanced image. The second technique is summarized as adding back the Low-High and High-Low bands that were extracted previously from the original image by Haar wavelet transform to the image which reinforce its edges.