SPEAR1340 datasheet(27/200 Pages) STMICROELECTRONICS

27 / 200 page

SPEAr1340

Device functions

Doc ID 023063 Rev 4

27/200

Supported post-processing features:

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Input image source

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Internal source (combined mode): G1decoder

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External source (standalone mode): for example, a software decoder or camera

interface

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Input image size

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Combined mode: 48 x 48 to 8176 x 8176 (66.8 Mpixels)

–

Standalone mode: width from 48 to 8176, height from 48 to 8176 (maximum size

limited to 16.7 Mpixels)

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Output image size

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16 x 16 to 1920 x 1088

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Image scaling

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Bicubic polynomial interpolation for upscaling

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Proprietary averaging filter for downscaling

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Arbitrary, non-integer scaling ratio separately for both dimensions

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YCbCr to RGB color conversion

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BT.601-5 compliant

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BT.709 compliant

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User definable conversion coefficient

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Dithering

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2x2 ordered spatial dithering for 4-, 5- and 6-bit RGB channel precision

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Alpha blending

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Output image can be alpha blended with two rectangular areas

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Deinterlacing

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Conditional spatial deinterlace filtering; supports only YCbCr 4:2:0 input format

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linear RGB image contrast, brightness and color saturation adjustment

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Deblocking filter for MPEG-4 simple profile /H.263 / Sorenson

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Using a modified H.264 in-loop filter as a postprocessing filter; filtering has to be

performed in combined mode.

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Image cropping / digital zoom

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User definable start position, height and width

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Usable only for JPEG or stand-alone mode

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Output image masking

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Image rotation

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Rotation 90, 180 or 270 degrees

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Horizontal/vertical flip

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