Basler Ag

Michael Niesyto

Jörg Kunze

A method for coding an image comprising a plurality of pixels. For at least one pixel of the plurality, a differential value is calculated from a value of the pixel and at least one surrounding pixel value, which occurs in the proximity of the pixel in the image. A quantizer is selected from a plurality of quantizers, and the differential value is assigned to a quantizer value by means of the selected quantizer. The quantizer value is assigned to a bit sequence by means of a coding. Thereby, the coding is based on an averaging of incidences of values the individual quantizers of the plurality can assume for pixel value differences respectively. Furthermore, a method is provided for transmitting an image comprising of a plurality of pixels to a receiver, an apparatus for coding an image comprising of a plurality of pixels and a system for transmitting image data.

Method and apparatus for coding image data

A method for determining a second quantizer for quantizing digital images, wherein the second quantizer is determined for a specified number of levels, which is at least two. For the determination, a first quantizer with a lower number of levels than the specified one is taken into consideration. Furthermore, a method for coding an image comprising a plurality of pixels, a computer-readable medium, an apparatus, which implements at least two quantizers as a digital circuit and a digital camera with such an apparatus is disclosed.

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Ahrensburg, Germany

Michael Niesyto