It solves the difficulty in binarization due to gray level confusion between local background and image by automatic thresholding with local image enhancement.
通过局部图像增强的自动阈值选择等手段，解决视网膜血管图像与局部背景之间因灰度混同所造成的二值化困难；
The enhancement of image has linear and non-linear enhancement, and includes global enhancement and local enhancement.
图像增强分为线性增强和非线性增强，其方法有两种：全局的和局部的。
Adaptive segmentation and local enhancement methods are used to process images taken in haze. As the result, higher contrast of image is obtained without noise magnification in sky region.
采用图像自适分割方法以及图像局部增强方法对轻雾天气下的图像进行处理，在大幅度提高图像清晰度的同时避免了天空噪声的放大。
For the regions in image where gray value is high or change intensely, local mean value and variance is adopted to control enhancement coefficients.
针对图像中的高灰度区和灰度剧变区，应用图像局部均值和方差自适应调节增强系数。
Objective To improve the new algorithm of local contrast enhancement for MR image based on mathematical morphology, we evaluated the performance of the algorithm by real MR images from clinical use.
目的对基于数学形态学的磁共振图像局部对比度增强算法进行临床MR图像测试，为完善算法提供依据。
Periods and local direction of fingerprint image are the important structure characters. The two characters of structure are important in the fingerprint enhancement.
指纹图像的周期性和局部方向性是指纹图像的重要结构特征，充分利用这两个结构特征是提高指纹增强算法的重要方法。
For regions with high grey-scale level or with tensely variable grey level, the image enhancement coefficients shall be adaptively controlled based on local mean value and variance.
针对图像中的高灰度区和灰度剧变区，应用图像局部均值和方差自适应调节增强系数。
RESULTS: the system provided a research platform for the algorithm of MRI local enhancement, and had the interface function of image format conversion between bitmap and DICOM.
结果：为磁共振图像进行增强局部对比度算法研究提供了一个研发平台，实现了位图图像与医学数字成像和通信图像的数据转换接口功能。
A new contrast enhancement technique is presented, which can not only extend the dynamic scope of the image gray scale, but also increase the local image contrast.
此方法既扩大了图象灰度的动态范围，又使得图象中的局部对比度得到了增强。
A new contrast enhancement technique is presented, which can not only extend the dynamic scope of the image gray scale, but also increase the local image contrast.
此方法既扩大了图象灰度的动态范围，又使得图象中的局部对比度得到了增强。
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