The Composition and Analysis Application of Digital IR Color Images

The IR color photography has several advantages which are not provided by the regular color photography and the IR black-and-white photography.However,it presents some unavoidable shortcomings.According to the principles of light sensitivity and color reproduction of IR color photography,by applying computer technology and the image processing software Photoshop 7.0,a digital color image generated by a digital camera is merged with an IR image to create a new composite digital IR color image.The process and methodology are presented through a sample experiment.The color reproduction results of the composite image are analyzed to show that a composite image has the same color effects as an IR color photo.The application of this technique in the document examination is also indicated in the paper.