Image processing device, recording medium and image processing method
AssigneeFUJIFILM Corporation
InventorYousuke Katou
Life of this patent
Estimating the term…
Abstract
Color reproduction ranges for images of subjects taken in the light of plural light sources each having plural color temperatures are previously stored. First, a predetermined chromatic characteristic of an input image is analyzed, thereby determining whether the image needs white balance correction or not. If the image is determined to need white balance correction, a color reproduction range close to the color distribution of the image is selected from among the color reproduction ranges previously stored, and white balance correction adapted for a color temperature associated with the color reproduction range is performed.
Claims14
An image processing device, comprising:
- an image input section that receives an image of a subject;
- a storage section that stores color reproduction ranges each corresponding to color temperature;
- an analysis section that analyzes a chromatic characteristic of the image received and determines whether the image needs white balance correction or not;
- a color reproduction range selecting section that analyzes a color distribution of the image and selects a color reproduction range close to the color distribution from among the color reproduction ranges stored in the storage section, when the analysis section determines that the image needs white balance correction;
- and
- a correction processing section that performs white balance correction based on the color reproduction range selected by the color reproduction range selecting section.
A computer readable recording medium storing a program capable of causing a computer to process steps comprising:
- an image input step of inputting an image of a subject;
- an analysis step of analyzing a predetermined chromatic characteristic of the image received at the image input section, thereby determining whether the image needs white balance correction or not;
- a color reproduction range selecting step of analyzing a color distribution of the image if the analysis section determines that the image needs white balance correction and selecting a color reproduction range close to the color distribution from among previously stored color reproduction ranges for images of subjects taken in the light of plural light sources each having plural color temperatures;
- and
- a correction processing step of performing white balance correction adapted for a color temperature associated with the color reproduction range selected by the color reproduction range selecting section.
An image processing method, comprising:
- an image input step of inputting an image of a subject;
- an analysis step of analyzing a predetermined chromatic characteristic of the image received at the image input section, thereby determining whether the image needs white balance correction or not;
- a color reproduction range selecting step of analyzing a color distribution of the image if the analysis section determines that the image needs white balance correction and selecting a color reproduction range close to the color distribution from among previously stored color reproduction ranges for images of subjects taken in the light of plural light sources each having plural color temperatures;
- and
- a correction processing step of performing white balance correction adapted for a color temperature associated with the color reproduction range selected by the color reproduction range selecting section.
Dependencies are inferred from the claim text.