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Abstract: The great development in micromanipulation technology has
exigent request to develop image processing for the microscopic image.
According to the characteristic of the SLM color microscopic image in
micromanipulation imaging system, a method for edge detection based on
wavelet transformation and HSI is proposed. Then, the interested area of
the image is interpolated using cubic spline and accurate sub-pixel
edges are obtained based on the zero point of first-order derivatives of
cubic spline curve. The experiment result shows that this method is
effective for SLM color microscopic images with various magnifications.
This method can filter noise from SLM color microscopic images
effectively and detect satisfactory edge. Moreover, the method is
applied to images with simulated noise and real images. The experiment
results are given at the end.
Key words: Wavelet transformation HSI color space Sub-pixel edge
detection Cubic spline Color microscopic image
CLC No: TP391
国家自然科学基金(50275023)和国家自然科学重点基金(50135040)资助项目.
Received 20040312, received in revised form 20040830
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