01-05-2012, 05:03 PM
Spatial Domain Methods – Basic Gray Level Transformations 2
03Basic Gray Level Transformations 2.ppt (Size: 1.05 MB / Downloads: 33)
Piecewise – Linear Transformation Functions:
Some important transformations can be formulated only as piecewise functions.
It requires more user input.
The methods are
Contrast stretching
Gray level slicing
Bit plane slicing
Bit – plane slicing:
Separating a digital image into its bit planes is useful for analyzing the relative importance played by each bit of the image, a process that aids in determining the adequacy of the number of bits used to quantize each pixel.
It is useful for image compression.
Summary:
The piecewise linear transformation functions, its types and applications are studied.