A method for visualizing an echo texture feature, comprising: obtaining an ultrasound image, wherein the ultrasound image comprises a plurality of pixels, wherein each pixel contains a pixel value; defining a region of interests on the ultrasound image and determining a regional standard deviation, wherein the regional standard deviation is the standard deviation of the pixel values of the pixels in the region of interests; eliminating the pixels having the pixel values lower than a standard value in the region of interests, wherein the standard value is a multiple of the regional standard deviation; generating a set of local statistical parameters for each of the remaining pixels in the region of interests, wherein an N th set of local statistical parameters is obtained from the pixels within a local area composed of an N th pixel point and the pixels adjacent the N th pixel in the region of interests, and the N th pixel is one of the remaining pixels in the region of interests, N is a natural number from 1 to the number of the remaining pixels in the region of interests, and the local statistical parameters comprise a plurality of local means; obtaining at least one echo texture index in accordance with the local statistical parameters; generating a plurality of echo texture imaging intensities, wherein each of the echo texture imaging intensities represents an absolute difference between a regional mean and the local mean of each of the remaining pixels in the region of interests, and wherein the regional mean is a mean of the pixel values of the remaining pixels in the region of interests; and obtaining a color scale image of the echo texture feature by merging the at least one echo texture index and the echo texture imaging intensities. obtaining an ultrasound image, wherein the ultrasound image comprises a plurality of pixels, wherein each pixel contains a pixel value; defining a region of interests on the ultrasound image and determining a regional standard deviation, wherein the regional standard deviation is the standard deviation of the pixel values of the pixels in the region of interests; eliminating the pixels having the pixel values lower than a standard value in the region of interests, wherein the standard value is a multiple of the regional standard deviation; generating a set of local statistical parameters for each of the remaining pixels in the region of interests, wherein an N th set of local statistical parameters is obtained from the pixels within a local area composed of an N th pixel point and the pixels adjacent the N th pixel in the region of interests, and the N th pixel is one of the remaining pixels in the region of interests, N is a natural number from 1 to the number of the remaining pixels in the region of interests, and the local statistical parameters comprise a plurality of local means; obtaining at least one echo texture index in accordance with the local statistical parameters; generating a plurality of echo texture imaging intensities, wherein each of the echo texture imaging intensities represents an absolute difference between a regional mean and the local mean of each of the remaining pixels in the region of interests, and wherein the regional mean is a mean of the pixel values of the remaining pixels in the region of interests; and obtaining a color scale image of the echo texture feature by merging the at least one echo texture index and the echo texture imaging intensities.