METHOD, APPARATUS AND SYSTEM PROVIDING COLUMN SHADING CORRECTION FOR IMAGE SENSOR ARRAYS

摘要

A method of column shading correction comprising measuring pixel response values in a pixel array, calculating column shading correction coefficients for each column in a pixel array based on the steps of calculating a column noise correction coefficient value using dark rows and averaging a plurality of the column noise correction coefficients to produce a column shading correction coefficient for each column, adjusting the pixel response values based on the column shading correction coefficients, and applying column shading correction to the pixel array.