Image processing method and apparatus, recording medium, and imaging apparatus

   
   

For the purpose of providing an image processing method for determining the variance of noise in an image, a residual sum of squares of pixel values is determined for each of a plurality of local regions defined over the entire image (502-508); a histogram thereof is obtained (510); and the variance of noise is determined based on the value of the residual sum of squares that gives a peak of the histogram (512, 514).

Con el fin de proporcionar un método de proceso de imagen para determinar la variación del ruido en una imagen, una suma residual de cuadrados de los valores del pixel se determina para cada uno de una pluralidad de regiones locales definidas sobre la imagen entera (502-508); se obtiene un histograma de eso (510); y la variación del ruido se determina basó en el valor de la suma residual de cuadrados que da un pico del histograma (512, 514).

 
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