Example image of eyePlorer eyePlorer map for 'Brightness': Light Visual perception Luminance Attribute Property Subjective Photometry (optics) Radiance Radiometry Federal Standard 1037C Wertheimer White's illusion Arithmetic mean Colorfulness HSL and HSV RGB color space Absolute magnitude Apparent magnitude Star Timbre Spectral centroid Black level Gain (projection screens) Inkjet paper Swiss Light Source Tone reproduction V849 Ophiuchi Vignetting Algol variable CIECAM02 Contrast (vision) Hue Color solid Scaleogram Abd al-Rahman al-Sufi APEX system Batch Image Processor Bleaching of wood pulp Digital manipulation in railway photography Mass to light ratio Adobe PhotoDeluxe Filling factor Phase angle (astronomy) Image processing Nephology Smoked glass Color term Kai's Power Tools CMYK color model Non-photo blue