In this paper ,A proposed image operation method of measuring the stitch density (course per inch and wale per inch) of a knitted fabric has been developed in this research. The stitch density of a knitted fabric measured by proposed image method which captured by a smart phone technique. The measured stitch density to be examined by the said algorithm. The method was tested using 5 knitted fabric samples with different densities. In order to validate the proposed method, The results were compared with the stitch density directly measured by conventional ( The ASTM standards methods ) methods. It has been found that the results between conventional and proposed image method are significant (with 0.95 & 0.99 significance value) with 97.30 %.