Synaptics Corporation

Dam Le Quang

Chang Zhang

Li Liu

A system including a motion adaptive de-interlacer, a film mode detector, and a combiner. The motion adaptive de-interlacer is configured to determine a first output by de-interlacing a plurality of interlaced frames based on at least a first motion indicator indicating motion between fields of the plurality of interlaced frames. The film mode detector is configured to determine a second output based on a film mode detected based on at least a second motion indicator indicating motion between fields of the plurality of interlaced frames. The film mode detector is further configured to output a control signal based on the second motion indicator and the film mode. The combiner is configured to combine the first output and the second output based on the control signal.

Motion adaptive de-interlacing and advanced film mode detection

Apparatus, methods, and other embodiments associated with image processing operations are disclosed that provide image contrast enhancement. According to one embodiment, an apparatus includes histogram stretching logic to generate a stretched histogram. The stretched histogram is generated by compressing an enlarging a contrast of brightness bins of an equalized histogram of brightness component values formed from a previous input frame of image pixel data. Flat region detection logic classifies pixels of the previous input frame of image pixel data as being flat pixels or non-flat pixels, and counts a number of the flat pixels. Noise detection logic classifies the flat pixels as being noisy pixels or non-noisy pixels, and counts a number of the noisy pixels. The number of noisy pixels and characteristics of the stretched histogram are used to enhance the contrast of a current input frame of image pixel data.

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Ho Chi Minh, Vietnam

Dam Le Quang