We devise improved photometric parameters for the morphological classification of galaxies using a bright sample from the First Data Release of the Sloan Digital Sky Survey .
In addition to using an elliptical aperture concentration index for classification , we introduce a new texture parameter , coarseness , which quantifies deviations from smooth galaxy isophotes .
The elliptical aperture concentration index produces morphological classifications that are in appreciably better agreement with visual classifications than those based on circular apertures .
With the addition of the coarseness parameter , the success rate of classifying galaxies into early and late types increases to \simeq 88 % with respect to the reference visual classification .
A reasonably high success rate ( \simeq 68 % ) is also attained in classifying galaxies into three types , early-type galaxies ( E+S0 ) , early- ( Sa+Sb ) and late- ( Sc+Sdm+Im ) type spiral galaxies .