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4 results for “Agarophyton vermiculophyllum”
FIG. 4. — A in The use of photographic color information for highthroughput phenotyping of pigment composition in Agarophyton vermiculophyllum (Ohmi) Gurgel, J.N.Norris & Fredericq
FIG. 4. — A, After color correction procedures, color values estimated for four areas on the color card (i.e., black, white, red, and blue swatches) included in each photograph showed no significant differences among light condition groups (shapes); B, After color correction using values standardized using a color card, color traits (RGB values analyzed with PCA) were more similar within thallus (numbered clusters) than among light conditions (shapes), with a few exceptions. C, Centroids estimated for each thallus (numbered clusters) and light condition (shape and color) combination showed that some light conditions could be effectively standardized with color correction procedures (e.g. blue, direct sunlight, and white light), whereas thalli photographed under other conditions showed different color profiles even after correction (e.g. indirect sunlight (triangles), and to a lesser extend yellow light (boxed Xs).
FIG. 2 in The use of photographic color information for highthroughput phenotyping of pigment composition in Agarophyton vermiculophyllum (Ohmi) Gurgel, J.N.Norris & Fredericq
FIG. 2. — Principal components of variation for: A, R, G, and B values; B, pigment variables. Arrow directions indicate the association of each variable to PC 1 and PC 2. Arrow length indicates the relative strength of the contribution of each variable. Point color reflects the average color of each thallus; C, the major axis of variation in pigments (PC1) is best predicted by a combination of color PC1 and PC2. The dashed line represents predicted values when PC2 is low, compared to when PC2 is high (solid line); D, pigment variation along PC2 is best predicted by color variation along PC2.
FIG. 1 in The use of photographic color information for highthroughput phenotyping of pigment composition in Agarophyton vermiculophyllum (Ohmi) Gurgel, J.N.Norris & Fredericq
FIG. 1. — Agarophyton vermiculophyllum color variation. Photographs used for color information arranged (from top left) in rank order of increasing hue value. Lower right panel shows the color of the average RGB values estimated from each image. Labels indicated the region and site of origin for each thallus. Diameter of dish in each image is 100 mm.
FIG. 3 in The use of photographic color information for highthroughput phenotyping of pigment composition in Agarophyton vermiculophyllum (Ohmi) Gurgel, J.N.Norris & Fredericq
FIG. 3. — Examples of images taken of the same thallus and color card under five light conditions (left column), and those same images after white balancing (right column). Width of the color card in each image is 178 mm.
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