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Figure 3 | BioMedical Engineering OnLine

Figure 3

From: Definition of an automated Content-Based Image Retrieval (CBIR) system for the comparison of dermoscopic images of pigmented skin lesions

Figure 3

Representative colour and texture scatter-plots together with the corresponding skin lesion image. Skin lesion images of a melanoma, a benign nevus and of an angioma combined with a benign nevus and relative colour and texture scatter-plots are shown. The colour scatter-plot is the RGB composition of Red vs. Green, Green vs. Blue and Blue vs. Red channels scatter plots. The co-occurrence matrix is the RGB composition of the three CRCM (Red/Green, Green/Blue and Blue/Red). All CRCM computed at four displacement steps (5, 15, 30 and 60 pixels) are properly shifted in order to avoid interference among the different co-occurrence matrices. The local image variance scatter-plot with respect to the image pixel radiometric value for each band is reported in a RGB composition. The origin of the local variance scatter-plot is located at the upper left corner of the image.

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