AN APPROACH TO COLOR IMAGE ENHANCEMENT USING MINIMUM MEAN BRIGHTNESS ERROR DYNAMIC HISTOGRAM EQUALIZATION

作者：Hossain Md Foisal^*; Alsharif Mohammad Reza; Yamashita Katsumi

来源：International Journal of Innovative Computing Information and Control, 2011, 7(2): 827-840.

• Color image enhancement
• Brightness preservation
• Dynamic histogram equalization
• Color space

Image contrast enhancement by applying Histogram Equalization (HE) has become an accepted and popular technique. This technology has been widely used due to its simplicity and effectiveness. However, together with some advantages, HE often hampers the mean brightness of image to the mid-level (in gray-level range). Saturation effect is one typical example of this unwanted visual deterioration which is often caused by HE technique. Due to these grounds, it is not always enviable to implement HE directly in consumer electronic products like television. It is equally important to preserve the input brightness and keep PSNR of an image to an optimum level to avoid the generation of non-existing artifacts in the output image. In order to overcome this particular problem, a novel image enhancement method, known as Minimum Mean Brightness Error Dynamic Histogram Equalization (MMBEHDE) was proposed in the preceding study to attain maximum brightness preservation. Nowadays, most of the consumer electronic products use color images. This paper is an attempt to synthesis some paths to develop this method for color image contrast enhancement. To do so, several color spaces were chosen and used in this method to validate its performance over others.

• 出版日期2011-2