Accession Number : AD0724117

Title :   Texture-Tone Study with Application to Digitized Imagery.

Descriptive Note : Interim technical rept.,

Corporate Author : KANSAS UNIV/CENTER FOR RESEARCH INC LAWRENCE REMOTE SENSING LAB

Personal Author(s) : Haralick,Robert M. ; Bissell,Joe D.

Report Date : DEC 1970

Pagination or Media Count : 105

Abstract : The report describes initial research efforts undertaken to determine if texture - a significant but ill-defined property of virtually all substances can be used in a practicable automated image interpretation technique. The authors attempt to establish a basis for measures which define the important qualities of texture by first considering discrete tonal features in an image as constituents of areas of homogeneity or lack of homogeneity ('unhomogeneity'). The concept of homogeneity is intended here to signify the existence of groups of similar neighboring resolution cells, which have been judged similar by some prespecified criterion. Homogeneity displays or plots are constructed by linking or connecting the similar neighboring resolution cells and ignoring all others. Unhomogeneity infers a lack of similarity of neighboring resolution cells; and an unhomogeneity plot then, is a display of linked, dissimilar neighboring resolution cells. Digital computer algorithms were written to determine the extent of homogeneity for each resolution cell in a picture, and a group of ten (5 homogeneity and 5 unhomogeneity) on-line plots were made for each of the 36 images. (Author)

Descriptors :   (*PHOTOGRAPHIC IMAGES, PHOTOINTERPRETATION), (*DATA PROCESSING, *PATTERN RECOGNITION), PHOTOGRAPHIC TEXTURE, PHOTOGRAPHIC TONE, PHOTOGRAPHIC GRAIN, DIGITAL COMPUTERS, COMPUTER PROGRAMS, AERIAL PHOTOGRAPHS, PHOTOGRAMMETRY

Subject Categories : Cartography and Aerial Photography
      Computer Programming and Software
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE