Digital image processing
Direct Least Square Fitting of Ellipses
IEEE Transactions on Pattern Analysis and Machine Intelligence
A multiscale contrast enhancement method
ICIP '97 Proceedings of the 1997 International Conference on Image Processing (ICIP '97) 3-Volume Set-Volume 1 - Volume 1
Image enhancement via adaptive unsharp masking
IEEE Transactions on Image Processing
Adaptive image contrast enhancement using generalizations of histogram equalization
IEEE Transactions on Image Processing
Optimal edge-based shape detection
IEEE Transactions on Image Processing
Orientation and anisotropy of multi-component shapes from boundary information
Pattern Recognition
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A method is proposed to determine the average cellulargeometry in high-resolution images of embryonic epithelia.The concept of a ýcomposite cellý is used to represent the averagecell shape. This composite cell can provide evidence of stressespresent in the epithelia. A new adaptive contrast enhancementroutine is applied to the input image first, followed by aniterative watershed segmentation. The composite cell is calculatedfrom the segmentation results. Qualitative results show that thiscomputationally inexpensive algorithm produces accurate resultsfor a variety of image sizes, contrast levels, cell shapes andappearances.