What is grayscale image?

Answer 1

An image based on 256 shades of gray.

Answer 2

Instead of color, the image is shown in shades of gray. It could be considered "black and white," but with more varieties of gray (more detail and shade differences, in other words).

Grayscale is great if you don't have a color printer, or if you want a photo in black and white. It generally translates the colors into corrosponding shades of gray quite nicely. Of course, you can always adjust the brightness or contrast if you don't like how the grayscale looks.

Answer 3

In computing, a grayscale or greyscale digital image is an image in which the value of each pixel is a single sample

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Answer 4

A greyscale (or greylevel) image is simply one which the only colours are shades of grey. The reason for differentiating such images from any other sort of colour image is that less information needs to be provided for each pixel. In fact a `grey' colour is one in which the red, green and blue components all have equal intensity in RGB space, and so it is only necessary to specify a single intensity value for each pixel, as opposed to the three intensities needed to specify each pixel in a full colour image.

Often, the greyscale intensity is stored as an 8-bit integer giving 256 possible different shades of grey from black to white. If the levels are evenly spaced then the difference between successive greylevels is significantly better than the greylevel resolving power of the human eye.

Greyscale images are very common, in part because much of today's display and image capture hardware can only support 8-bit images. In addition, greyscale images are entirely sufficient for many tasks and so there is no need to use more complicated and harder to process colour images.

Answer 5

A grey scale image is an image where all the original colours are reduced to values of grey. They differ from "black and white" images because their spectrum is richer and they show less brutal contrast and more dark shades.

Answer 6

There are typically three types of color used in images.

Black and White

Grayscale

Color

Black and white is when only true black and true white are used.

Color is when color is used

Grayscale is when a varying range of gray shades from true black to true white are used to create a shadowing effect. It's not color, but it's shaded and easier to read.

In terms of file size, it's going to be larger than a B&W and smaller than a color.

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Answer 7

it's a black and white image that includes shades of gray instead or the colors that would be shown were it a color image

Answer 8

black & white image. [ only colors of gray used in the image like black-white]

Answer 9

color image converted to black and white

Answer 10

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