Image processor, image processing method and recording medium

A non-transitory computer readable recording medium on which a computer program is recorded, said computer program comprising:

• a judgment step of causing a computer to judge whether captured image signal values of image signals converted from an image are signal values representing skin color pixel regions;
• a skin color correction step of causing the computer to calculate skin color correction signal values in the case that it has been judged that said captured image signal values are signal values representing said skin color pixel regions;
• and
• a reconstruction step of causing the computer to reconstruct the image by applying said skin color correction signal values to said skin color pixel regions and by applying the captured image signal values to which skin color correction is not performed to pixel regions other than said skin color pixel regions,
• wherein
• said computer program has a first white balance correction step of causing the computer to perform white balance correction to said skin color correction signal values, and
• said captured image signal values are R1G1B1 signal values of three primary color signals subjected to white balance correction beforehand,
• said computer program has:
• an inverse correction step of causing the computer to perform inverse correction to said R1G1B1 signal values to obtain R2G2B2 signal values;
• and
• a step of causing the computer to convert said R2G2B2 signal values into Y1Cb1Cr1 signal values of component signals,
• said judgment step causes the computer to judge whether said Y1Cb1Cr1 signal values are signal values representing said skin color pixel regions,
• said skin color correction step causes the computer to perform skin color correction to said Y1Cb1Cr1 signal values to obtain Y2Cb2Cr2 signal values in the case that said judgment step has judged that said Y1Cb1Cr1 signal values are signal values representing said skin color pixel regions,
• said computer program has:
• a step causing the computer to convert said Y2Cb2Cr2 signal values into R3G3B3 signal values;
• a step of causing the computer to convert said Y1Cb1Cr1 signal values into R2G2B2 signal values in the case that said judgment step has judged that said Y1Cb1Cr1 signal values are not signal values representing said skin color pixel regions;
• and
• a second white balance correction step of causing the computer to perform white balance correction to said R2G2B2 signal values to obtain R1G1B1 signal values,
• said first white balance correction step causes the computer to perform said white balance correction to said R3G3B3 signal values to obtain R4G4B4 signal values, and
• said reconstruction step causes the computer to reconstruct the image by applying said R4G4B4 signal values to said skin color regions and by applying said R1G1B1 signal values to said pixel regions other than said skin color pixel regions.