Alpha compositing

About: Alpha compositing is a research topic. Over the lifetime, 482 publications have been published within this topic receiving 11035 citations. The topic is also known as: alpha blend & alpha channel.

Video compositing method and video compositing system

Abstract: Using a background-side image which is a shot of an arbitrary background and a material-side image which is a shot of a composition material against the same background, two images are compared to extract an image material to be composited. Images shot in any scenery can thus be used to extract a composition material, being part of the images, without using a certain background such as a blue screen.

System and method for compositing various images using clustering technique

Abstract: Disclosed are a system and a method for compositing various images that minimize a brightness difference in connection areas of various images by using a clustering technique at the time of compositing various images. The method for compositing various images may include receiving two or more input images; compositing the two or more input images into one composite image; calculating a brightness distribution degree; calculating representative brightness values; determining clustering; calculating a correction target value; and calculating a correction value of an increase/decrease curve.

Makeup Transfer Using Multi-Example

Abstract: We introduce an individual virtual makeup transfer approach for digital images. Traditional makeup transfer methods focus on the transfer of the whole facial makeup effect, whereas our method can produce high quality individual makeup effect by transferring local makeup effects from multiple examples in different facial component regions. First, we modify the lightness and chroma channels of each facial region of the examples, respectively. Second, we transfer these modified information to corresponding facial region of the target image. Finally, we introduce a hybrid image blending method that allow seamless image composition and combine alpha blending to produce the final result. Experimental results show our method is effective.

An Efficient Fingerprint Watermarking Approach Using 3 Levels DWT and Alpha Blending Technique

Abstract: In recent years of internet has been increased with the extensive growth in the digital technique Digital watermarking technique is used to provide security This paper proposes the watermarking based on 3 level discrete wavelet transform and alpha blending technique A multibit watermarking technique is used into low frequency sub band of cover image by using alpha blending technique by varying the scaling factor The extraction of the watermark is also done by the scaling factor To enhance the security a key is used at both sender and receiver side The PSNR (peak signal to noise ratio) and MSE (mean square error) values are obtained for different values of scaling factor alpha Watermark generated by the proposed algorithm is more robust to attacks and the quality of the recovered image is improved

Method for reducing size of mobile electronic magazine file

Abstract: The invention discloses a method for reducing the size of a mobile electronic magazine file. The method includes the steps that firstly, an image popped up in a mobile electronic magazine needing to be manufactured is manufactured to be a source image (ori.png) of the png format; secondly, the image popped up is manufactured to be an output image (out.jpeg) of the jpeg format; thirdly, the source image (ori.png) is copied to form a mask image (mask.png) of the png format, and the mask image (mask.png) is manufactured to be an image, wherein the alpha channel of the image is not changed, and the color of the image is pure; fourthly, the mask image (mask.png) is added to the output image (out.jpeg) through mask attributes on mobile equipment. Through the method, the final displaying background of the image popped up is transparent, good visual experiences are achieved, and the size of the whole mobile electronic magazine is greatly shortened.