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An improved method for beef image histogram equalization is discussed in the paper.First a function is used to reduce each gray frequencies to shorten the gap between the maximum and the minimum gray frequencies,then classic histogram method is used for the new array,so the new valid gray level is obtained;at the last the gray level is reconstructed with equal interval in the whole display region.Theoretical and experimental results show that with this method,the more details can be remained,fat edge can be...

An improved method for beef image histogram equalization is discussed in the paper.First a function is used to reduce each gray frequencies to shorten the gap between the maximum and the minimum gray frequencies,then classic histogram method is used for the new array,so the new valid gray level is obtained;at the last the gray level is reconstructed with equal interval in the whole display region.Theoretical and experimental results show that with this method,the more details can be remained,fat edge can be obtained more clearly during beef image processing ,and the algorithm can also make histogram more smooth.

在传统直方图均衡的基础上,提出一种增强牛肉图像直方图的改进算法。先用一个函数来缩小最大的灰度频数与最小灰度频数之间的差距以使其更好保留细节,然后对有效的灰度级进行等间距处理以使图像在整个显示范围内显示。理论和实践证明本算法可以更好地保留细节,脂肪边界清楚,同时可使直方图更为平滑。

An adaptive output window technique based on gray red undancy for infrared image is proposed in order to overcome the disadvantage of infrared image gray distribution.The adaptive output window threshold is calcula ted from the histogram,if the pixels sum of the same gray level is zero,this gra y level is compressed.Those gray levels which pixel sum is less than the thresho ld are replaced by gray level of the threshold.Then effective gray-levels are d istributed equidistantly .This algorithm can eliminate gray...

An adaptive output window technique based on gray red undancy for infrared image is proposed in order to overcome the disadvantage of infrared image gray distribution.The adaptive output window threshold is calcula ted from the histogram,if the pixels sum of the same gray level is zero,this gra y level is compressed.Those gray levels which pixel sum is less than the thresho ld are replaced by gray level of the threshold.Then effective gray-levels are d istributed equidistantly .This algorithm can eliminate gray redundance and no gr ay-level lost.The results show that the image quality has been improved.Theis a lgorithm achieved real-time processing.

根据红外图像的特点,提出了一种基于灰度冗余的红外图像自适应输出窗技术.该技术通过对图像灰度直方图的统计,设定适当的阈值,将灰度像素分布为零的灰度级进行完全压缩,将小于阈值的灰度级映射到阈值灰度级,然后将有效灰度级在整个可显示灰度级范围内作等间距排列.该算法在压缩灰度冗余的同时,实现了对有效图像灰度级的无损均衡,提高了图像质量,并能实现实时处理.

 
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