IT (lecture 5) Flashcards
An example on …. is light reflected from a planar surface
Illumination energy reflection
An example on …. is when X-rays pass through a patient’s body for the purpose of generating a diagnostic X-ray image
Illumination energy transmission
…. digitizing the coordinate values
Sampling
….. digitizing the amplitude values
Quantization
….. requires that decisions be made regarding the values for M, N, and for the number, L, of discrete intensity levels
Image digitization
In ….. images, each pixel is just black or white
Binary
In ….., since there are only two possible values for each pixel, we only need one bit per pixel
Binary image
…. is very efficient in terms of storage
Binary image
In ….. images, each pixel is a shade of gray, normally from 0 (black) to 255 (white)
Greyscale
In ….. images, each pixel can be represented by eight bits, or exactly one byte
Greyscale
In ….. , each pixel has a particular color
True color, or RGB images
In ….., the color is described by the amount of red, green, and blue in it
RGB images
….. are also called 24-bit color images
RGB images
In …….., each pixel has a value which doesn’t give its color (as for an RGB image), but an index to the color in the map
Indexed image
Image files tend to be …..
Large
