Methods and apparatus for dynamically scaling images

Details Methods and apparatus for dynamically scaling images Methods and apparatus for dynamically scaling images

1989-07-10

1991-05-28

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

358451, 358453, G06K 932

Patent

active

050201158

ABSTRACT:
An image processing system is disclosed in which the various image processing circuits are arranged in a pipeline such that the output of each circuit is passed on to the next circuit in the pipeline without storing the data between circuits of the pipeline. The individual processing circuits are program-controlled by a common controller in order to properly synchronize various operations such as scanning, compressing, expanding, rescaling, windowing and rotating. The rescaling operation is carried out by executing a sequence of program instructions applying to single pixels, or to single lines of the image. These instructions include deletion, duplication and passing through of the image element. Windowing is provided by inserting start-of-window and end-of-window instructions in the appropriate places in the sequence of rescaling instructions.

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