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Color image enhancement is an active research field in image processing. Currently, many image enhancement methods are capable of enhancing the details of the color image. However, these methods only process the red, green and blue (RGB) color channels separately, which leads to color distortion easily. In order to overcome this problem, the paper presents an approach to integrate the quaternion theory...
The catalytic pyrolysis of plant biomass was investigated in a dual-particle powder fluidized-bed (PPFB), where the primary decompositions and secondary reactions occurred simultaneously under ambient pressure. The yields and distributions of the pyrolysis products were studied under various operating conditions. In the absence of catalyst, the amount of volatile released from woody biomass depended...
Wipe transition is an important type of gradual transition, but false and missed detection are very serious in most literatures due to noise and motion. In the proposed scheme, color sub-image and edge sub-image of each frame are decomposed by Db-4 wavelet transition. In detecting potential wipe transition, the color sub-image is divided into 8*8 pixel blocks, and Gaussian mode is applied to adjust...
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