Transferring color to greyscale images
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Colorization using optimization
ACM SIGGRAPH 2004 Papers
Digital Image Processing (3rd Edition)
Digital Image Processing (3rd Edition)
ACM SIGGRAPH 2006 Papers
Colorization Using Segmentation with Random Walk
CAIP '09 Proceedings of the 13th International Conference on Computer Analysis of Images and Patterns
Automatic seeded region growing for color image segmentation
Image and Vision Computing
Application of K- and Fuzzy c-Means for Color Segmentation of Thermal Infrared Breast Images
Journal of Medical Systems
A region growing and merging algorithm to color segmentation
Pattern Recognition
Image segmentation using automatic seeded region growing and instance-based learning
CIARP'07 Proceedings of the Congress on pattern recognition 12th Iberoamerican conference on Progress in pattern recognition, image analysis and applications
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Segmenting tumors from grayscale medical image data can be difficult due to the close intensity values between tumor and healthy tissue. This paper presents a study that demonstrates how colorizing CT images prior to segmentation can address this problem. Colorizing the data a priori accentuates the tissue density differences between tumor and healthy tissue, thereby allowing for easier identification of the tumor tissue(s). The method presented allows pixels representing tumor and healthy tissues to be colorized distinctly in an accurate and efficient manner. The associated segmentation process is then tailored to utilize this color data. It is shown that colorization significantly decreases segmentation time and allows the method to be performed on commodity hardware. To show the effectiveness of the method, a basic segmentation method, thresholding, was implemented with and without colorization. To evaluate the method, False Positives (FP) and False Negatives (FN) were calculated from 10 datasets (476 slices) with tumors of varying size and tissue composition. The colorization method demonstrated statistically significant differences for lower FP in nine out of 10 cases and lower FN in five out of 10 datasets.