Additional file 10 of Statistical image processing quantifies the changes in cytoplasmic texture associated with aging in Caenorhabditis elegans oocytes

Additional file 10: Table S1. Processing time per image for Mm Value, SD, entropy and COR. The processing time was measured for input images of various sizes. The parameter settings were changed according to the image size. Processing time per image was calculated by averaging the processing time of 1000 images. The processing time for Mm Value was equivalent to that for SD, and that for entropy was greater than that for Mm Value or SD. The computational complexities of the SD and entropy are of the order of O(W2M2) and O(W2M2) + O(GM2), respectively, where W is the window size, M is the size of the input image and G is the number of grey levels of the input image. The processing time for the first-order statistical features was less than that for COR when the input images were small (30 × 30 pixels), but greater than that for COR when the input images were large (150 × 150 pixels). This was because the processing times for the first-order statistical features increased with the image size, but the processing time for COR was largely unaffected by the image size.