Image processing method, recording medium with recorded image processing program and image processing apparatus
An image processing method for carrying out predetermined correction processing with respect to one or more items regarding the quality of color images and the image processing method comprises a judgment step for judging the necessity/nonnecessity of correction with respect to each of the above-mentioned items and a correction processing step for carrying out the predetermined correction processing with respect to the item judged as required to be corrected at the above-mentioned judgment step.
1. A judging method of a color image covered with a specific color, comprising:
converting color components R, G and B of an image data of a color image into hue data, lightness data and saturation data;
calculating histograms of the hue data, the lightness data and the saturation data;
calculating, based on an entirety of the hue data, a first data concentration of the hue data in a first predetermined range;
calculating, based on the entirety of the hue data, a second data concentration of the hue data in a second predetermined range which is different from the first predetermined range; and
judging that the color image is covered with a specific color based on the first data concentration and the second data concentration.
2. A judging method of the color image covered with a specific color according to claim 1 , wherein the second predetermined range is wider than the first predetermined range.
3. An image processing apparatus, comprising:
a memory which stores an image data of a color image;
a judge section which judges whether correction of the color image based on the color image covered with a specific color;
wherein the judge section comprises;
a unit for converting color components R, G and B of an image data into hue data, lightness data and saturation data;
a unit for calculating histograms of the hue data, the lightness data and the saturation data;
a unit for calculating, based on an entirety of the hue data, a first data concentration of the hue data in a first predetermined range;
a unit for calculating, based on the entirety of the hue data, a second data concentration of the hue data in a second predetermined range which is different from the first predetermined range; and
a unit for judging that the color image is covered with a specific color based on the first data concentration and the second data concentration.
4. An image processing apparatus according to claim 3 , wherein the second predetermined range is wider than the first predetermined range.
5. A computer readable medium with a recorded program, the program being executed and performing:
converting color components R, G and B of an image data of a color image into hue data, lightness data and saturation data;
calculating histograms of the hue data, the lightness data and the saturation data;
calculating, based on an entirety of the hue data, a first data concentration of the hue data in a first predetermined range;
calculating, based on the entirety of the hue data, a second data concentration of the hue data in a second predetermined range which is different from the first predetermined range; and
judging that the color image is covered with a specific color based on the first data concentration and the second data concentration.
6. A computer readable medium with a recorded program according to claim 5 , the program being executed and performing:
wherein the second predetermined range is wider than the first predetermined range.