Static leakage currents are the prime contributor to energy consumption for large on-chip secondary/tertiary caches. This energy cost can be reduced by dynamically disabling unneeded portions of the cache. To provide overall energy savings, however, the leakage-energy reduction must exceed the extra energy incurred due to additional off-chip accesses and increased runtime. We derive a practical...

Die-stacked DRAM has been proposed for use as a large, high-bandwidth, last-level cache with hundreds or thousands of megabytes of capacity. Not all workloads (or phases) can productively utilize this much cache space, however. Unfortunately, the unused (or under-used) cache continues to consume power due to leakage in the peripheral circuitry and periodic DRAM refresh. Dynamically adjusting th...

Detecting manipulated images has become an important problem in many domains (including medical imaging, forensics, journalism and scientific publication) largely due to the recent success of image synthesis techniques and the accessibility of image editing software. Many previous signal-processing techniques are concerned about finding forgery through simple transformation (e.g. resizing, rota...

The project presented here aims to explore the artistic possibilities offered by digital performances in real time, in the form of dance, which is regarded as a privileged form of body language in the interaction between the performer and a digital artifact, interaction that establishes itself as the driving element of the whole scenic narrative. To research the aforementioned possibilities, a ...

This paper demonstrate the attempt to evolve feasible solution to the scenario in which different possible attacks on embedded watermark can be avoided along with the enhancement of the content retrieved from noisy image post watermarking. With the revolution of information technology and wide area networking, data has become less private where in the admittance of media as well as the attempts...

Images although being one of the key elements in digital media typically remain rigid in size and cannot deform to fit different layouts automatically. Standard image scaling is not sufficient since it is oblivious to the image content and typically can be applied only uniformly. Cropping is limited since it can only remove pixels from the image periphery. More effective resizing can only be ac...

We develop a computer aided design (CAD) tool for the simulation and testing of a color image printing pipeline. True color images typically have three color planes (red, green and blue) with eight bits of resolution per pixel per image plane. Printing these images involves a binarization process called halftoning which converts each color plane into a binary image for rendering on binary devic...

In this paper, the performance of SVD and Schur decomposition is evaluated and compared for image copyright protection applications. The watermark image is embedded in the cover image by using Quantization Index Modulus Modulation (QIMM) and Quantization Index Modulation (QIM). Watermark image is embedded in the D matrix of Schur decomposition and Singular Value Decomposition (SVD). Watermarkin...

Countershading is a common technique for local image contrast manipulations, and is widely used both in automatic settings, such as image sharpening and tonemapping, as well as under artistic control, such as in paintings and interactive image processing software. Unfortunately, countershading is a double-edged sword: while correctly chosen parameters for a given viewing condition can significa...

Vision-based inspection of printed circuit board (PCB) soldering defects was studied for preparing feature data and classifying the overall PCB on a prototype into different classes. The image developed using an sensor camera. Image augmentation conducted to enhance dataset volume. pre-processing included resizing, colour conversion, denoising. Watershed-based segmentation performed in post-pro...