Unit 78:Digital Graphics for Computer Games

Pixels

Picture Resolution

Picture resolution is the quality of the picture and how much detail it holds in it. The better the quality, the higher the picture resolution.Picture resolution is took by a camera which makes it different to image resolution which is made by creating an image instead of taking a picture. Picture resolution is used in many video games to improve the atmosphere and mood as for instance in the picture above you can see the face in detail however, the two images to the side are image resolution as you can see picture resolution has a higher quality meaning it has more pixels and has a higher resolution.

Image Resolution

Image resolution is the quality of image and how sharp and the depth it has in the image itself. Normally an better looking image or a high resolution image is one that has more pixels and worst more pixelated image is one that not that many pixels. Factors that can effect the image resolution. first can be crop an image which lowers the resolution or basically the pixel size goes down. An another way to effect  the quality when enlarging a cropped or the original image it would make the image look worst because when making  it bigger the pixels don't change or enhance it more like a magnified image than anything else. But it also work the other ways when making an image smaller it look sharper and more detail but it would be more for a logo than anything else. Last way to enhance an image is to use an anti-aliasing which smooths the edges of the image making look sharper and more professional.

Intensity/Pixel Values

There are 2 types of pixel value. In the simplest form of Binary it says it is only a 1 bit number however, with colours it is different. The pixel values for grey scale is from 0 to 255 usually 0 is represented as being white and 255 is represented as black. For colour it is different instead of being a value between 0-255 it is a vector of three numbers. 8 bit games have less pixels than a 64 bit game as the more pixels you have the higher the quality.