earticle

영어

The advent of IT and display technology provides new possibility that we can use the digital images with pixel values of brightness to figure out the exact value of luminance in the visual environment. For this purpose, a certain DSLR camera has been calibrated to take a photolux image with real value of luminance. To verify the practical usefulness of the image processing technology with the specific digital camera, a comparative study with physical measurement values of brightness on a window of an apartment house has been performed. Not surprisingly the image processing approach delivers a set of accurate luminance values on a certain area of the window.