Content-aware image resizing (CAIR) is desired because it preserves prominent regions in a resized image. However, CAIR requires high computational complexity to perform in mobile devices, though it is desired for these displays. Moreover, transmitting the side information for CAIR from the encoder is a problem since it usually requires high bitrates compared with those for image data. In this ...

In this paper we propose a wavelet transform based watermarking method. The wavelet coefficients of the watermark are embedded to the most significant coefficients at the low and high frequency bands of the discrete wavelet transform of an image. A multeresolution nature of wavelet transform can be exploit in the process of detection. Experimental results show that the proposed watermarking met...

The rapid growth of image archives increases the need for efficient and fast tools that can retrieve and search through large amount of visual data. In this paper an efficient method of extracting the image color content is proposed, which can serve as an image digital signature, allowing to efficiently index and retrieve large multimedia Internet based databases. The proposed method was applie...

Images play a vital role in steganography, as cover media to hide secret messages. Retargeting becomes mandatory while transmitting image in a heterogeneous network because sender and recipient may not have display devices of same resolution. Resizing images by scaling or cropping also lead to loss of visually important features. In steganography, resizing, compressing, and changing the color o...

GelScape is a web-based tool that permits facile, interactive annotation, comparison, manipulation and storage of protein gel images. It uses Java applet-servlet technology to allow rapid, remote image handling and image processing in a platform-independent manner. It supports many of the features found in commercial, stand-alone gel analysis software including spot annotation, spot integration...

This paper presents a novel image watermarking technique using Kekre’s algorithm to generate hybrid wavelet transform DKT_DCT from Kekre transform and Discrete Cosine Transform. In the proposed technique, 256x256 hybrid transform is generated using 16x16 Kekre transform and 16x16 DCT whereas, 128x128 hybrid wavelet transform is generated using 32x32 Kekre transform and 4x4 DCT matrix. Generated...

Object detection in images is a process whose goal is to determine the position of the objects in the image along with identifying them. Challenges, facing object detection, such as determination of the lighting, changing the perspective, image resizing, image extension, and rotating the original image, have led to miscellaneous methods. Geometrical methods deal with finding the primary lines, ...

An efficient image resizing algorithm in the compressed domain with mixed field/frame-mode macroblocks is proposed. A 16 16 field/frame-mode macroblock is converted into an 8 8 reduced block in the discrete cosine transform (DCT) domain using a modified inverse DCT (IDCT) kernel which performs stronger lowpass filtering than the simple truncation in the DCT domain. Experimental results show tha...

In this paper, we propose an improved content-aware image resizing algorithm with protection of main objects. First, we extract three feature maps, namely, saliency map, the enhanced edge map, and the object map for main objects. After that, we integrate these three feature maps to an importance map by the weighted sum. Finally, we construct the target image using the importance map. Experiment...