- 學位論文
How Many Grey Levels Are Required to Represent a Grey Intensity Image Using Histogram Equalization?
摘要
It is well known that most images don’t always require an 8-bit representation for each pixel; in particular a pixel of texture images may even be coded in no more than 5 bits (32 gray levels). Adequately enough it is probable that between 20 to 32 levels of gray could be a suitable threshold for most gray level texture image representation, before the image shows signs of false contouring or any notable rough edges. This research uses various sets of images that have been equalized through the use of Histogram Equalization; a methodology that increases the contrast of an image by using the image’s histogram. All the data gathered were from a survey conducted on 50 different test subjects.
參考文獻
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