Rgb Colorspace
An rgb color space is any additive color space based on the rgb color model.
Rgb colorspace. As such it can be represented as a simple cube figure 4 where three of the vertices represent the primary colors. This coordinate plane yields a cube called the rgb color space. Excluding transfer function white point etc. Rgb color space or rgb color system constructs all the colors from the combination of the red green and blue colors.
This makes 256 256 256 16777216 possible colors. This is a color model display format that uses the three primary colors blue red and green to create an image. I did with the simple rationale that bigger must be better. After a while however you might find that you run into occasional problems if you set your camera to adobe rgb.
Adobe rgb is actually a larger color space most say it is about 35 larger than srgb. Ciexyz srgb and ictcp are examples of absolute color spaces as opposed to a generic rgb color space. Raw red green and blue samples. Upon learning this many photographers switch to adobe rgb.
Colorspace changes the way the image is stored in memory set colorspace just sets the colorsapce of the image without conversion many image formats like jpg do not use difference colorspaces without using some time of color profile as such the image is converted back to rgb colorspace unless a color profile has been defined. A good color space is the space i need for my photo. With this free online tool you can convert images from cmyk to rgb color space using a professional color profile. If all three color channels have a value of zero it means that no light is emitted and the resulting color is black on a monitor for example it cannot be blacker than the surface of the monitor producing 0 light.
The red green and blue use 8 bits each which have integer values from 0 to 255. Each color can have up to 255 gradations allowing for color depths of up to 48 bits. The idea of the rgb color space is really to stick to the principle of human vision and represent colors as a simple sum of any quantities from 0 to 1 of the primary colors red green and blue. Independent color spaces are therefore used as a working space in photoshop and especially in your images.
A good space is not necessarily a very large color space. Srgb adobe rgb and prophoto in photo and rec 709 and dci p3 in video. The best known are. Or enter a url.
A particular color space that employs rgb primaries for part of its specification is defined by the three chromaticities of the red green and blue additive primaries and can produce any chromaticity that is the 2d triangle defined by those primary colors ie. A color space in which colors are unambiguous that is where the interpretations of colors in the space are colorimetrically defined without reference to external factors.