Image processing apparatus and method for adjusting lightness of image

An image processing apparatus is disclosed. The image processing apparatus comprises a dividing module, a calculating module, a judging module and an adjusting module. The dividing module is used for dividing an image into a plurality of sub-images. The calculating module is used for generating a li...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HSIEH TUNG-LIN, LEE HSIN-HUNG, TSENG YAO-SHUN, LEE WANING
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An image processing apparatus is disclosed. The image processing apparatus comprises a dividing module, a calculating module, a judging module and an adjusting module. The dividing module is used for dividing an image into a plurality of sub-images. The calculating module is used for generating a lightness threshold of the image. The judging module is used for comparing an original average lightness of a target sub-image among the plurality of sub-images with the lightness threshold. The adjusting selectively increases the original average lightness of the target sub-image according to the first judging module.