Every Electronic Device has an internal or native characteristics, that is far away or never being close to the Colorspace as an entity. Displaying ColorĬolorspace has a major role on the display devices, Having the Colorspace within the device will never ensure to display the right color, unless the Device has been profiled to match the Colorspace. LUT does not do magic to create anything new, It helps in translation. This can be the best possible way a LUT can play around. Any information that cannot be mapped may be rounded off to the nearest possible or truncated and filled with zero's. The mix match combination can be applied in a mathematical way for all combinations, as long as you know the characteristics of the device. RGB-> REC 709-> P3-> ACES ( Theoretical maximum gamut, mean really for processing the image file intact in terms of color ) LUTĪ LUT ( Look Up Table) is essentially meant to exchange the color information between these spaces, and this shall happen via mathematical expressions, and will follow the characteristics of the Device or the Equipment's along with the color information.įor Eg: if a device is only possible to acquire information as 8 bit data(255 levels), but has to be processed on a 10 bit Device with a different color-space, the LUT will translate and help in processing between these two devices. The gamut increase has resulted like below. The term Gamut can be often used in the Colorspace, which simply means maximum limit or range of colors that, any specific color space can hold in its range. The modern Colorspaces like REC 709, P3 and the new ACES aswell mean the same. The fact that we need to keep us is, Colorspace does only mean the theoretical limit that any device could hold or display. Chromacity will define the nature of the Co-ordinates The Brightness is the value that Human Eye can detect fast irrespective or any color change. In between this, Every color-space would have the parameter's defined between Brightness and Chromacity. The most common and better formulated Color Model, the way of representing all visible color's by Human Eye is defined by CIE-LAB and CIE-XYZ, they would simply mean the mathematical way of representing the Human Vision possibilities and also define the possible Spectrum that an Human Eye can see. Inorder to understand and further have a common standard of association between the Equipment's and various stages of Process, any Images captured or processed should or good to follow a color space. The above said theory holds good here aswell to see a Colored Images via combined channels. But in-order to get a colored Image, we have followed several techniques, one could be having a Color Filter to allow or stop certain wavelength.
If we could apply a transform optically, we could easily see a Monochrome Image. When these reactions are stored, they could give a plane with the light intensities varying. In good olden or till recent day's Films have reacted chemically, CMOS and CCD's have reacted electrically, and sometimes devices in earlier stages can reach mechanically. The way in which the medium or the layer is characterized, they react in the similar way. When an Electronic machine or any device sensitive to light see or receives the light, it would or can only react to it. So now again We could see Color= X amount of Light.
When the wavelength is within the visible spectrum (the range of wavelengths humans can perceive, approximately from 390 nm to 700 nm), it is known as "visible light". Physics of color.īy Physics Color is associated by Electromagnetic radiation, characterized by its wavelength (or frequency) and its intensity. Color is nothing but the way light is seen by Human Eye. The very basic definition on a theoretical ways is, Color derives from the spectrum of light (distribution of light power versus wavelength) interacting in the eye with the spectral sensitivities of the light receptors.
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