COLOR IMAGE RENDERING USING A MODIFIED IMAGE FORMATION MODEL

摘要

PURPOSE: A color image adjustment method using a transformed image formation model is provided to improve image quality of a display device by forming an adjusted image by using a global illumination component acquired from an input image, a local illumination component and reflection component. CONSTITUTION: A display device acquires a global illumination component by using a Gaussian filter of an input image(S100). The display device acquires a local illumination component by using a JDN-based adaptive filter of the input image(S200). The display device acquires a reflection component from the input image(S300). The display device forms an adjusted image by using the acquired global illumination component, the local illumination component, and the reflection component(S400). [Reference numerals] (AA) Start; (BB) End; (S100) Obtaining a global illumination component by using a Gaussian filter in an input image; (S200) Obtaining a local illumination component by using a JDN-based adaptive filter in the input image; (S300) Obtaining a reflection component by dividing the global illumination component and the local illumination component in the input image; (S400) Applying a power function to the global illumination component, the local illumination component, and the reflection component and generating the corrected image by multiplication of each components