Image quality adjustment processing device

1. An image processing device capable of executing adjustment of image quality of image data, comprising:

a feature amount obtainment unit which obtains an amount of feature indicative of a feature of image quality of the image data;

a correction amount obtainment unit which obtains an amount of correction for adjusting the feature amount of the image data to a predetermined target value; and

an image quality evaluation unit which evaluates an image quality based on the correction amount

wherein when a file group includes at least JPEG data and RAW data both derived from same image data, the feature amount obtainment unit obtains the feature amount based on the JPEG data, the image processing device further comprising a file selection unit which selects the JPEG data as a target to be output when a result of evaluation by the image quality evaluation unit is higher than a predetermined level, the file selection unit selecting the RAW data as the target to be output when the result of evaluation by the image quality evaluation unit is lower than the predetermined level.

2. The image processing device according to claim 1 , wherein the file selection unit selects as a target to be output a file regarding which a result of evaluation is in a predetermined range.

3. The image processing device according to claim 1 , further comprising a display unit which displays a result of evaluation by the image quality evaluation unit together with the image data.

4. The image processing device according to claim 1 , wherein the correction amount obtainment unit obtains the correction amount for each of a plurality of image quality adjustments, and the image quality evaluation unit weights a degree of image degradation due to each image quality adjustment to each correction amount and sums each correction amount weighted by the image degradation degree, thereby comprehensively evaluating the image quality after image adjustment.

5. An image processing device capable of executing adjustment of image quality of image data, comprising:

a feature amount obtainment unit which obtains an amount of feature indicative of a feature of image quality of the image data;

a correction amount obtainment unit which obtains an amount of correction for adjusting the feature amount of the image data to a predetermined target value;

an image quality evaluation unit which evaluates an image quality based on the correction amount; and

a user correction amount storage unit which stores a user amount of correction based on a result of retouch with the image data by the user and a target value modification unit which modifies the predetermined target value based on the user correction amount.

6. An image processing program embodied in a non-transitory computer readable medium which is capable of executing adjustment of image quality of image data and on which a computer executes functions of:

obtaining an amount of feature indicative of a feature of image quality of the image data;

obtaining an amount of correction in image quality adjustment based on comparison of the feature amount and a target image quality; and

evaluating an image quality based on the correction amount,

wherein when a file group includes at least JPEG data and RAW data both derived from same image data, the feature amount is obtained based on the JPEG data, the JPEG data is selected as a target to be output when a result of the image quality evaluation is higher than a predetermined level, and the RAW data is selected as the target to be output when the result of the image quality evaluation is lower than the predetermined level.