We used a recognition memory paradigm to assess the visual memory of X-chromosome-linked dichromats for color images of natural scenes. The performance of 17 protanopes and 14 deuteranopes, who lack the second (red-green opponent) subsystem of color vision, but retain the primordial (yellow-blue opponent) subsystem, was compared with that of 36 color normal observers. During the presentation ph...

White balancing is an important step to correct the color value of pixels under varied color temperature of illuminations for color image processing. We have to do the image preprocessing of the color cast, and use the zone system with the white balance to solve this problem. Then we implement the biological intelligent algorithms for images segmentation, such as Artificial Bee Colony (ABC) and...

Mirabilis jalapa, commonly known as ((Four O’clock”’ “Sweet Marvel of Peru,” or ‘(Printoponite,” belongs to the Nyctaginaceae. This species is cultivated for the brilliant color and pleasing odor of its flowers. Due to its simplicity, the breeding behavior of the self flower colors has furnished classical material for illustrating the simple laws of inheritance. It may be shown, however, that t...

We have developed an automatic calibration method for a global camera system. Firstly, we show how to define automatically the color maps we use for tracking the robots’ markers. The color maps store the parameters of each important color in a grid superimposed virtually on the field. Secondly, we show that the geometric distortion of the camera can be computed automatically by finding white li...

AN EXAMINATION OF THE CONCLUSION PROPOSED BY V..A. THORNTON ON THE "LUMINOSITY AND COLOR RENDERING CAP ABILITY OF WHITE LIGHT".1 A study was recently conducted by V..A. Thornton of Westinghouse Plourescer.t end Vapor Divisions, on the luminosity and color rendering capability of white light. It is the purpose of this project to inves tigate the validity of his conclusions. Thornton states that:...

White balance algorithms try to remove color casts in images caused by non-white scene illuminants, transforming the images to appear as if they were taken under a canonical light source. We propose a new white balance algorithm for scenes with multiple lights, which requires that the colors of all scene illuminants and their relative contributions to each image pixel are determined. Prior work...

Dominant white, Dun, and Smoky are alleles at the Dominant white locus, which is one of the major loci affecting plumage color in the domestic chicken. Both Dominant white and Dun inhibit the expression of black eumelanin. Smoky arose in a White Leghorn homozygous for Dominant white and partially restores pigmentation. PMEL17 encodes a melanocyte-specific protein and was identified as a positio...

A colored line flanking a darker border will appear to assimilate its color onto the enclosed white area over distances of up to 45 deg (the Watercolor Effect). This coloration is uniform and complete within 100 ms. We found that thin (6 arcmin), winding inducing lines with different contrasts to the ground are generally more effective than thick, straight, and equiluminant lines. Blue and red ...

OBJECTIVES This study investigated the effect of red and white wine on color changes of nanofilled and nanohybrid resin composite. MATERIALS AND METHODS Sixty specimens of each resin composite were prepared. Baseline data color values were recorded using a spectrophotometer. Three groups of discs (n = 20) were then alternately immersed in red, white wine, and deionized water (as a control) fo...