Description: This paper presents a novel technique to increase
the quality of medical images based on Histogram
Equalization. In the proposed method first we have
applied a noise reduction method and then we apply
some suitable preprocessing on histogram of the
medical images and after that histogram equalization
has been applied on the new histogram. Our proposed
method in despite of its simplicity has better results in
compare to other usual methods based on histogram
equalization. The quality of resulted images after
applying our proposed methods has been tested on a
database (medical images) with a confirmed criterion
by viewer. Also we have considered a mathematical
criterion for comparing our proposed algorithm with
other available methods for contrast enhancement.
Results show the better efficiency of the proposed
method. Platform: |
Size: 419840 |
Author:ismaiel |
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Description: 在进行车牌识别的预处理过程中,如何有效地提高车牌图像质量是一个关键,这一步处理的好坏将直接影响到后面车牌识别的效果。 本文重点研究直方图修改技术增强图像方法在车牌识别预处理中的应用,给出了直方图修改技术的原理,以及直方图均衡化、规定化和对比度调整的原理,最后用MATLAB来实现车牌图像增强的效果。-License Plate Recognition in the pre-treatment process, how to effectively improve the image quality license plate is a key to dealing with the merits or demerits of this step will directly affect the effectiveness of the back license plate recognition. This article focuses on the image histogram modification method to enhance license plate recognition in the pre-processing of applications, given the principle of histogram modification techniques, as well as histogram equalization, contrast adjustment provisions and the principles of using MATLAB to achieve the final vehicle the effect of brand image enhancement. Platform: |
Size: 966656 |
Author:storm |
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Description: 一篇关于灰度转换的论文：该文介绍了用直方图均衡化对灰度图像进行灰度映射，从而达到使图像增强的目的。利用VC++6.0执行效率
高，可继承、封装、移植等成熟的软件技术，对直方图均衡化算法进行实现。实验表明，该程序可以快速、准确地对灰度图
像进行灰度变换，达到了使图像对比度增强，改善图像质量的预期目的。-On a gray-scale conversion of paper: This paper introduces the use of gray-scale histogram equalization for gray-scale image mapping, so as to achieve the purpose of image enhancement. VC++6.0 to implement the use of high efficiency, inheritable, packaging, transplantation, etc. software technologies mature, the histogram equalization algorithm to achieve. The experiments show that the program can quickly and accurately carried out on the gray image gray-scale transformation to make the image contrast enhancement to improve the image quality of the desired purpose. Platform: |
Size: 208896 |
Author:liyu |
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Description: ⑴编程实现直方图均衡化
⑵设计完成同态滤波器，并用之改善图象质量。
⑶对某图像加入不同类型﹑不同强度的噪声（周期﹑椒盐噪声），并分别用空间域和频率域的方法抑制噪声。
-⑴ ⑵ programming histogram equalization filter design is completed with the state and used to improve the image quality. ⑶ image of a different intensity with different types of noise ﹑ (cycle ﹑ salt and pepper noise), respectively, with spatial and frequency domain methods of noise suppression. Platform: |
Size: 493568 |
Author:wang |
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Description: 在对图像进行处理之前，了解图像整体或局部的灰度分布情况非常必要。对图像的灰度分布进行分析的重要手段就是建立图像的灰度直方图，利用图像灰度直方图，可以直观地看出图像中的像素亮度分布情况；通过直方图均衡化、匹配（规定化）等处理，可以对图像的质量进行调整。该段代码就是对直方图的各种处理，如，直方图生成直方图均衡化和直方图匹配。
-In the image before treatment, understand the whole or local image of gray distribution is very necessary. The image of gray distribution was analyzed the important means of image is the establishment of gray histogram, use of gray histogram image, that can be directly in the images of the pixel luminance distribution Through histogram equalization, matching (the regulations) processing, the quality of the image can be adjusted. When the code is to the histogram of processing, such as, histogram generation histogram equalization and histogram match.
Platform: |
Size: 1024 |
Author:杨莎莎 |
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Description: 对数字图像进行直方图均衡化的处理，将图像的质量进一步提高，以利于后续的图像处理-Histogram equalization for digital image processing, and will further improve the quality of the image, in order to facilitate a subsequent image processing Platform: |
Size: 202752 |
Author:nimizi |
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Description: 基于信息能量的直方图均衡化算法,在传统的直方图均衡化算法上的改进，对图像质量的改善效果很明显。-Histogram equalization method based on the information on the energy, the improvement on the traditional histogram equalization algorithm on the image quality improving effect is obvious. Platform: |
Size: 1024 |
Author:yangyang |
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Description: 读入位图文件并利用直方图均衡化将此位图文件的对比度增强以改善图片的质量-Read into the bitmap file and histogram equalization this bitmap file contrast enhancement to improve the quality of the picture Platform: |
Size: 3072 |
Author:毛越 |
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Description: Color Image Enhancement Techniques:
A Critical Review
Abstract
Image enhancement is one of the key issues in high quality pictures such as digital camera and HDTV. Since
Image clarity is very easily affected by lighting, weather, or equipment that has been used to capture the image.
These conditions lead to image may suffer from loss of information. As a result, many techniques have
developed known as image Enhancement techniques to recover the information in an image. This paper presents
a literature review on some of the image Enhancement techniques for color image enhancement like, Contrast
Stretching, Histogram Equalization and its improvement versions, Homomorphic Filtering, Retinex, and
Wavelet Multiscale Transform. Comparison of all the techniques concludes the better approach for its future
research Platform: |
Size: 1063936 |
Author:hussain |
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Description: 提供了13种图片去雾增强方法，有直方图均衡，clahe，暗原色算法，改进的暗原色算法，实时去雾，引导滤波去雾，天空去雾等，同时给出图像增强前后图像质量评价，可以对jpg，bmp等图片格式进行去雾增强处理，效果非常好(13 kinds of image de fog enhancement methods are provided, including histogram equalization, CLAHE, dark original color algorithm, improved dark original color algorithm, real time fogging, filtering fog, fog and so on. At the same time, the image quality evaluation is given before and after image enhancement, and the effect is very good on the image format of JPG, BMP and so on.) Platform: |
Size: 23864320 |
Author:renhang |
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Search - quality histogram equalization