PROGRAM FOR CALCULATING VOLUME OF MEASURING OBJECT RECESSED PART OR PROJECTING PART EXISTING ON OBJECT SURFACE, AND COMPUTER-READABLE RECORDING MEDIUM WITH THE PROGRAM RECORDED THEREON

PROBLEM TO BE SOLVED: To provide a program for volume calculation to highly accurately measure the volume of a recessed part or projecting part existing on an object surface by means of image analysis using a computer. SOLUTION: A maximum-value/minimum value filter process is performed for the whole surface of a two-dimensional surface shape image (1) to acquire two images (2) and (3) in which projecting or recessed parts are eliminated at the surface height of both side parts of a measuring object region. The images (1) and (2) are processed to generate a lower position side corrected three-dimensional image (4) in which a step is removed at the lower surface side height, and the image (4) is digitized at a threshold 1 to generate a rectangularized three-dimensional image (6). The images (1) to (3) are processed to generate a higher position side corrected three-dimensional image (5) in which a step is removed at the higher surface side height. The logical multiplication of the images (5) and (6) is processed to generate a reducedly corrected three-dimensional image (7) by reducing the width of the object region widened on the image (5) to image 6 to a rectangle width of the image (6). The images (7) to (4) are processed to generate a corrected rectangular image (8) on a step part of the object region. The volume of the image (4) and half of the volume of the image (8) are added together to find the volume of the object region. COPYRIGHT: (C)2006,JPO&NCIPI