Description: 图像的象素值变换，包括亮度、对比度和GAMMA校正算法，环境是OPENCV4.0，VC6.0。算法参考了MATLAB函数 imadjust 。-pixel image transformation, including brightness, contrast and GAMMA correction algorithm, the environment is OPENCV4.0, VC6.0. MATLAB algorithm reference to the function imadjust. Platform: |
Size: 1667 |
Author:陈大明 |
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Description: 图像的象素值变换，包括亮度、对比度和GAMMA校正算法，环境是OPENCV4.0，VC6.0。算法参考了MATLAB函数 imadjust 。-pixel image transformation, including brightness, contrast and GAMMA correction algorithm, the environment is OPENCV4.0, VC6.0. MATLAB algorithm reference to the function imadjust. Platform: |
Size: 1024 |
Author:陈大明 |
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Description: 基于Directshow的Transfrom Filter的开发框架，主要实现一个RBG图像的亮度对比度的算法过程-Directshow of Transfrom Filter Based on the development framework, mainly the realization of a RBG image brightness contrast algorithm process Platform: |
Size: 21504 |
Author:等待 |
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Description: 图像的象素值变换，包括亮度、对比度和GAMMA校正算法，环境是OPENCV4.0，VC6.0。算法参考了MATLAB函数 imadjust 。-Transform the pixel values of images, including brightness, contrast and GAMMA correction algorithm, the environment is OPENCV4.0, VC6.0. Algorithm MATLAB function reference imadjust. Platform: |
Size: 1024 |
Author:chenshan |
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Description: 針對亮度與對比不佳影像的邊界偵測問題，提出以影像增強為前處理之. 邊界偵測演算法-Poor image brightness and contrast for the boundary detection is proposed for image enhancement for the pre-processing. Boundary detection algorithm Platform: |
Size: 506880 |
Author:王宇歆 |
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Description: 现有的直方图均衡算法在增强图像对比度的同时， 输出图像的亮度与输入图像无关， 并且在均衡区域产生亮度饱和现象，提出了一种新的直方图均衡算法。以亮度保持的双直方图均衡算法( B B HE )为基础，改进其对子图像的分类方式：根据直方图对图像进行多峰值分解，得到一系列不同范围的子图像，然后对每一个子图像在其相应的灰度范围内进行直方图均 衡， 最后合并这些子图像的均衡结果。实验结果表明，直方图均衡新算法不仅在保持了输出图像亮度的同时， 而且非常有效 的解决了在原图像均衡区域产生的亮度饱和问题对图像的影响。-The existing histogram balanced algorithm during enhancement image contrast gradient s, outgoing picture s brightness has nothing to do with the input picture, and has the brightness saturated phenomenon in the balanced region, proposed one kind of new histogram balanced algorithm. The double histogram balanced algorithm which maintains by brightness (B B HE) is a foundation, improves its antithetical couplet image the classified way: Carries on the multi-peak values according to the histogram to the image to decompose, obtains a series of different scope sub-image, then carries on the histogram to each sub-image in its corresponding density latitude to be balanced, finally merges these sub-image balanced result. The experimental result indicated that the histogram balanced new algorithm not only while maintained outgoing picture brightness, moreover the very effective solution the brightness saturated question which produced in the original image balanced region to the image the influ Platform: |
Size: 225280 |
Author:王一 |
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Description: 该文讨论了传统直方图均衡化算法的不足。 在分析人眼对图像亮度的感知 是呈对数关系的基础上．提出了基 于这一视觉特性的直方图均衡化算法的改进方法。该法过把对比度在人眼识别范围外的像素依据视觉特性进行调整．来提高图像细节信息的表现能力。实验证明了该改进方法的有效性-The paper discusses the traditional histogram equalization algorithm deficiencies. Analysis of the human eye in the perception of the image brightness is logarithmic relationship basis. Proposed based on the visual characteristics of the histogram equalization algorithm method. The law had to recognize the contrast outside the scope of the human eye based on visual characteristics of pixels to adjust. To improve the performance of image detail information capacity. Experimental results show the effectiveness of the modified method Platform: |
Size: 238592 |
Author:王一 |
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Description: 为了改善直方图均衡对低灰度层密集分布图像的处理效果，通过分析图像直方图均衡理论对同一灰度像素在处理后映射到同一灰度的过程中存在的理论缺陷，提出了一种高效 的、自适应的算法。该算法首先对图像进行常规的直方图均衡处理， 然后对处理后所形成的图像灰度在一个较大的灰度范围内进行映射， 保证变换后的图像有较大的灰度动态范围， 最后对结果进行适当的亮度修正，保证变换图像整体有较高的对比度，便于观察图像的细节．通过实验证明，改进后的算法可以明显地改善直方图均衡处理低灰度层密集分布图像的效果，同时具有较高的算法效率，适合在实时图像处理系统 中采用。-In order to improve the histogram balanced to the low gradation level dense distribution image processing effect, through analysis image histogram isostatic theory to identical gradation picture element after processing maps theory flaw which the identical gradation in the process exists, proposed one kind highly effective, the auto-adapted algorithm. This algorithm first carries on conventional to the image the histogram equalization treatment, the gamma controller which then after processing forms in a great density latitude to carry on the mapping, guaranteed after the transformation the image has the great gradation dynamirange, finally carries on the suitable brightness revision to the result, guaranteed that the transformation image whole has the high contrast gradient, is advantageous for the observation image the detail. Proved through the experiment, after the improvement algorithm may improve the histogram equalization treatment low gradation level dense distribution image ob Platform: |
Size: 210944 |
Author:王一 |
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Description: It is a laboratory work from bsuir, where foto
can be normilized by brightness, contrast, algorithm JPEG, dct idct Platform: |
Size: 1286144 |
Author:Andrew |
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Description: 采用了一种根据灰度特征进行模式匹配的跟踪算法提高了模板匹配法对于目标运动姿
态变化的自适应能力仿真结果表明上述算法在目标方向平移旋转以及图像背景对比度亮度发生改变时均能较好的检测到目标-It is presented
in this paper that a modified version of it which incorporating with frame difference and
multi-resolution matching. By introducing prediction algorithm, it could change initial
searching point, reduce the area of matching and improving operation speed which satisfied the
need of real-time processing. A tracking algorithm which is based on template matching of grey
scale characteristics is introduced to enhance the adaptive ability to target movement of attitude
changing. The computer simulation showed that those algorithms discussed above could detect the
target when its direction, shift and rotation varied in the situation that image background,
contrast and brightness altered. Platform: |
Size: 299008 |
Author:chen |
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Description: 基于MATLAB的图像处理的基本运算
（1）能够对图像亮度和对比度变化调整，并比较结果
（2）编写程序通过最近邻插值和双线性插值等算法将用户所选取的图像区域进行放大和缩小整数倍的和旋转操作，并保存，比较几种插值的效果
（3）图像直方图统计和直方图均衡，要求显示直方图统计，比较直方图均衡后的效果。
（4）对图像加入各种噪声，比较效果。
-Adjustment of image brightness and contrast changes, and compare the results based on MATLAB image processing operations (1) (2) to program the image area selected by the user to zoom in and out through the nearest neighbor interpolation and bilinear interpolation algorithm integer multiples and the rotary operation, and save, compare several interpolation image histogram and histogram equalization of the effect (3), required to display the histogram, comparative histogram after equalization effect. (4) adding a variety of noise on the image, comparing the effect. Platform: |
Size: 10240 |
Author:苏琴 |
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Description: 用matlab编程工具，编写具有操作界面的应用程序，通过菜单、对话框，选项框等界面控制，对算法进行演示。需要在应用系统中实现的算法及功能包括：
1、图像增强算法
（1）灰度线形变换：亮度及对比度可以调节（通过控制参数的改变，能够实时预览变化结果）；
（2）直方图均衡：可在界面上对比均衡前后的效果。
2、图像变换算法
（3）对一幅彩色图像进行DCT变换和反变换，对比结果和原图；
（4）仅保留左上角16X16的DCT系数，进行反变换，计算结果图的信噪比SNR。
3、图像分割算法
（5）采用最优阈值算法对灰度图像进行分割；
（6）用Canny算法对灰度图像进行边缘检测；
（7）用hough变换，检测边缘图像中的直线，并用不同颜色将检测出的直线叠加显示到原图像上。
-Preparation of a user interface with Matlab programming tools, applications, menus, dialog boxes, option boxes and other interface control, the algorithm demo. Algorithms and functions that need to be achieved in the application system including: 1, the image enhancement algorithm (1) gray linear transformation: the brightness and contrast can be adjusted (by controlling the change of the parameters, it is possible to real-time preview changes result) (2) Histogram equalization : contrast before and after equalization effect in the interface. 2, an image transformation algorithm (3) for a color image DCT transform and inverse transform, comparing the results and the original (4) to retain only the upper left corner of 16x16 DCT coefficient, the inverse transform, the signal-to-noise ratio SNR calculation results of FIG. . 3, image segmentation algorithm (5) The optimal threshold algorithm to gray-scale image segmentation (6) Canny algorithm for edge detection of gray-scale images ( Platform: |
Size: 822272 |
Author:张涛 |
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Description: 全局亮度与局部对比度自适应增强算法,一种简单有效的低照度图像处理算法。得到的增强图像色彩保持性好，算法简单快速。-Global and local contrast adaptive brightness enhancement algorithm, a simple and effective illumination image processing algorithms. The resulting color-enhanced image to maintain good algorithm is simple and fast. Platform: |
Size: 1024 |
Author:王金斌 |
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Search - brightness contrast algorithm