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This paper presents a simple image-based method of generating novel visual appearance in which a new image can be synthesized by stitching together small patches of existing images. This is a fast and very simple texture synthesis algorithm for patches of uniform size which produces surprisingly good results for a wide range of textures. Further, to improve the visual perception of synthesized texture,...
Steganography plays an important role in the field of information hiding. It is used in wide variety of applications such as internet security, authentication, copyright protection and information assurance etc. In Discrete Wavelet Transform (DWT) based steganography approaches the wavelet coefficients of the cover image are modified to embed the secret message. DWT based algorithm for image data...
In this study we propose a new system to detect and correct red eye defect in images. The proposed system works in three phases namely face localization, eye localization and red eye removal. Face localization involves method for extracting face from the image. Eye localization locates eye in the face extracted. The red eye defect, if present, is automatically detected and corrected using a simple...
Currently, radiologists indicate the femur endpoints with an interactive marker device; however, these measurements are subjective and have proved to be inconsistent. The main objective of this work is to obtain a time-efficient morphology-based algorithm to recognize femur contour in fetal ultrasound images, refine its shape for automatic length measurement, and thus, attaining accuracy and reproducibility...
Flexible automation technologies have been applied to the manual phototransfection procedure on fibroblast and astrocyte cells.We have designed and implemented a framework for increased throughput of the entire process. Integrated image processing, laser target position calculation, and stage movements show a throughput increase of > 23X over the current manual method while the potential for even...
We present a two-dimensional, vision-based force sensor, capable of sensing muN level forces. There are currently no reliable, off-the-shelf, commercially-available force sensors to measure forces at this scale, that can be easily integrated into standard microrobotic test-beds. Our design consists of a planar, elastic mechanism with known force-deflection characteristics. A CCD camera is used to...
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