Description: 用于对数字图像的处理，低通滤波器和高通滤波器。用VC++打开meto.dsw，重建，运行即可。-used for digital image processing, low-pass filter and a high-pass filter. VC opened meto.dsw, reconstruction, can be run. Platform: |
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Author:ericmoon |
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Description: 数字图像矩阵数据的显示及其傅立叶变换
二维离散余弦变换的图像压缩
采用灰度变换的方法增强图像的对比度
直方图均匀化
模拟图像受高斯白噪声和椒盐噪声的影响
采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
图像的自适应魏纳滤波
运用5种不同的梯度增强法进行图像锐化
图像的高通滤波和掩模处理
用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理
利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理
-digital image data matrix display and its Fourier transform two-dimensional discrete cosine transform image compression using gray change The method for enhancing the contrast of the image histogram equalization simulated images by white Gaussian noise and Impulse noise impact 2D Median filter function medfilt2 right by the Salt and Pepper noise interference with the image filtering MATLAB functions fi lter2 right by the noise of image filtering images using adaptive filtering Weiner five different gradient growth Intensity image sharpening images and high-pass filter mask Processing Butterworth (Butterworth) lowpass Filter by the noise of the image smoothing use Butterworth (Butterworth) high-pass filter filter on the image sharpening Platform: |
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Author:王晓明 |
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Description: 用于数字图象处理的lee滤波去噪的很好用很简单的程序-For digital image processing of the lee of a good de-noising filter with a very simple procedure Platform: |
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Author:金炉砚 |
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Description: 1.an fpga implementation of the image space reconstruction algorithm for hyperspectral imaging analysis
2. fpga implemention of a median filter
3. fpga implementation of digital filters
4.hardware acceleration of edge detection algorithm on fpgas
5.implementation and evaluation of image processing algorithms on reconfigurable architecture using C-based hardware descriptive languages
6. implementing 2D median filter in fpgas
7.视频图像处理与分析的网络资源 Platform: |
Size: 1969152 |
Author:carol |
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Description: 高斯平滑滤波实例，高斯滤波实质上是一种信号的滤波器，其用途是信号的平滑处理，我们知道数字图像用于后期应用，其噪声是最大的问题，由于误差会累计传递等原因，很多图像处理教材会在很早的时候介绍Gauss滤波器，用于得到信噪比SNR较高的图像（反应真实信号）。-Examples of Gaussian filtering, Gaussian filtering is essentially a signal of the filter, its use is smoothing the signal, we know that the late application for digital image noise is the greatest problem, because of transmission errors and other reasons will be accumulated , a lot of image processing pack will introduce at an early stage when the Gauss filter, used to get a higher signal to noise ratio SNR of the images (response to the real signal). Platform: |
Size: 140288 |
Author:冯董 |
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Description: 这是一个关于图像中值滤波的程序，能够对图像起到滤波的作用，特别是对冲激噪声特别有效-This is an image median filtering on procedures to filter the image play a role, especially for impulsive noise is particularly effective Platform: |
Size: 2048 |
Author:谢师 |
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Description: 1. 用imoise()函数给一幅数字图像加入’salt & pepper’和’Gaussian’噪声2）用3x3,5x5邻域平均平滑对图像进行处理3）用3x3,5x5中值滤波对图像进行处理，
2. 对一幅数字图像采用理想低通、Butterworth低通 、Gaussian低通滤波器进行平滑；对一幅数字图像采用理想高通、Butterworth高通 、Gaussian高通滤波器进行平滑。-1. With imoise () function to a digital image by adding ' salt & pepper' and ' Gaussian' noise 2) 3x3, 5x5 neighborhood average smoothing of the image processing 3) 3x3, 5x5 median filter for image processing , 2. on a digital image with an ideal low-pass, Butterworth low-pass, Gaussian smoothing low pass filter on a digital image using the ideal high-pass, Butterworth high-pass, Gaussian smoothing high-pass filter. Platform: |
Size: 2048 |
Author:toilet |
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Description: 傅立叶变换是数字图像处理中应用最广的一种变换，其中图像增强、图像复原和图像分析与描述等，每一类处理方法都要用到图像变换，尤其是图像的傅立叶变换。常用的图像增强技术可分为基于空域和基于变换域的两类方法。最常用的变换域是频域空间。在频域空间，图像的信息表现为不同频率分量的组合。如果能让某个范围内的分量或某些频率的分量受到抑制而让其他分量不受影响，就可以改变输出图像的频率分布，达到不同的增强目的。
4、高通滤波- 锐化
-Fourier transform in digital image processing is a transformation, which is the most widely used, including image enhancement, image restoration and image analysis and description. Each method is used for image processing, especially the image transform. This paper describes the digital image transform and gives the MATLAB program. Then, using FFT, realizes the image smoothing by using the low-pass filter and images sharpening by using the high-pass filter. Platform: |
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Author:李慕白 |
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Description: 针对数字图像处理上机实验编写的高通滤波器对图像的作用，效果明显，能完成实验所需要求。-High-pass filter for digital image processing experiment on the computer to write the role of the image, the effect is obvious, to complete the experiments necessary requirements. Platform: |
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Author:yongqi |
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Description:
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
P0308：图像的自适应魏纳滤波
P0309：运用5种不同的梯度增强法进行图像锐化
P0310：图像的高通滤波和掩模处理
P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理
P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理
-P0301: digital image data matrix display and Fourier Transform P0302: two-dimensional discrete cosine transform image compression P0303: Gray used method to enhance the contrast of the image P0304: histogram homogenization P0305: Simulation images by white Gaussian noise and salt and pepper. noise impact P0306: 2D median filtering function medfilt2 Salt and Pepper noise image filtering P0307: MATLAB functions filter2 mean image noise filtering P0308: Image Adaptive Filter Weiner P0309: use five different gradient Enhancement Act for image sharpening P0310: the image of the high-pass filtering and mask handling P0311: use Butterworth (Butterworth) low-pass filter for image noise smoothing P 0312: Butterworth ( Butterworth) high-pass filter to sharpen the image processing Platform: |
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Author:gy |
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Description: 分别介绍了数字信号的产生、处理（包括离散傅里叶变换的多种快速算法，各种离散正交变换的快速算法，快速卷积和相关，数字滤波器的时域和频域响应，IIR和FIR数字滤波器的设计）、随机数字信号处理、图像处理、人工神经网络。-Introduced a generation of digital signal processing (including a variety of fast algorithms for discrete Fourier transform, fast algorithm for various discrete orthogonal transform, fast convolution and correlation, time domain and frequency domain response of the digital filter, IIR and FIR digital filter design), random digital signal processing, image processing, artificial neural network. Platform: |
Size: 7552000 |
Author:luoyou |
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Description: 1 打开一个BMP文件，将其局部区域的灰度值进行改变，另存为一个新的BMP文件，要求显示出原BMP图像和新BMP图像。
2．编程实现图像傅立叶高通、低通滤波。
3.打开一幅图像，添加椒盐、高斯噪声，然后使用邻域平均法、中值滤波法、K邻近平均法进行平滑
4.打开一幅图像，利用Roberts梯度法、Sobel算子和拉普拉斯算子进行锐化，并比较结果。
5.编写一个程序，对输入的图像进行哈夫曼编码，显示原图像的熵、编码后的平均码字长度、并能够根据编码重建出图像
6.在图像中生成一个矩形，然后用模板匹配法找出矩形位置。使用SSDA或改进的SSDA法。-1) open a BMP file, change the gray values of its local area, and save it as a BMP file, the request shows the original BMP images and BMP images.
2. Programming image Fourier high-pass, low-pass filtering.
3 Open an image, add salt and pepper, Gaussian noise, and then use the neighborhood average, median filter, K adjacent average method for smoothing
4 Open an image using the Roberts gradient method, Sobel operators and Laplacian sharpening for, and compare the results.
5 to write a program, Huffman coding of the input image, the display of the original image entropy, and the average code word length of the encoded, and be able to reconstruct the image according to the coding
6. Generate a rectangle in the image, and then use the template matching method to identify the position of the rectangle. Using SSDA or improved SSDA method. Platform: |
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Author:fei |
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Description: 影像融合，包括基于高通滤波的加权融合和非加权融合、基于HIS变换的融合，其中基于HIS变换的融合需要较多时间，这是由于直方图匹配要花费很多时间，具体算法可以参考武大贾永红的《数字图像处理》一书-Image fusion, including the weighted and unweighted fusion based on highpass filter and the fusion based on HIS transformation. Among them, the fusion based on HIS transformation may take a little long time, caused by the histogram matching which is time consuming. For concrete algorithm, you are referred to the book Digital Image Processing written by Ronghong Jia in Wuhan University.
Platform: |
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Author:M R |
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Description: 区域自适应中值滤波器在数字图像处理中的应用，针对椒盐噪声的强弱处理，可能过matlab仿真得出明显的效果展示-The regional adaptive median filter in digital image processing, for the strength of the salt and pepper noise processing, may be too matlab simulation draw the obvious effect of display Platform: |
Size: 1024 |
Author:libing hu |
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Description: 在信号处理中，它通常是可取的是能够执行某种降噪图像或信号。中值滤波是一种非线性数字滤波技术，通常用于去除噪声。这种噪声是一个典型的前处理步骤，提高后处理的结果（例如，边缘检测在图像）。中值滤波是非常广泛的应用在数字图像处理中，在一定的条件下，它保留了边缘，去除噪声-In signal processing, it is often desirable to be able to perform some kind of noise reduction on an image or signal. The median filter is a nonlinear digital filtering technique, often used to remove noise. Such noise reduction is a typical pre-processing step to improve the results of later processing (for example, edge detection on an image). Median filtering is very widely used in digital image processing because, under certain conditions, it preserves edges while removing noise Platform: |
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Author:Simon |
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Description: MATLAB图像处理源程序3：程序代码说明
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
P0308：图像的自适应魏纳滤波
P0309：运用5种不同的梯度增强法进行图像锐化
P0310：图像的高通滤波和掩模处理
P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理
P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理-MATLAB image processing source code 3: Procedure Code Description P0301: digital image data matrix display and Fourier Transform P0302: two-dimensional discrete cosine transform image compression P0303: using gray transform method to enhance the contrast of the image P0304: histogram equalization P0305: Simulation images by white Gaussian noise and Impulse noise impact P0306: 2D median filtering of function medfilt2 on the Salt and Pepper noise image filtering P0307: MATLAB functions filter2 mean filtering the noise in the image P0308: Image Adaptive Filter Weiner P0309: use five different gradient Enhancement Act for image sharpening P0310: the image of the high-pass filtering and mask handling P0311: use Butterworth (Butterworth) low-pass filter on the noise in the image smoothed P0312: use Butterworth (Butterworth) high-pass filter for image sharpening Platform: |
Size: 11264 |
Author:木子 |
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Description: 有源码，适合学习C++的人
一、 读入一幅灰度图象，编写程序显示图象中任一象素点的灰度值。
二、 编程实现RGB彩色空间到HSV彩色空间的转换，并通过调整H、S、V的值实现图像亮度、色度和色饱和度的调节。
三、 1.灰度线性变换、分段线性变换
2.灰度直方图均衡、规格化
3.图象卷积：各种模板实现低通、高通滤波
4.图象中值滤波、最大值滤波、最小值滤波、模板选择滤波
5.伪彩色图象增强
四、 1.图象的加、减、乘、除和逻辑运算。
2.图象的镜像变换、图象的缩放（灰度插值）变换
五、 编程实现图象的FFT变换和反变换
六、 用逆滤波方法和维纳滤波方法恢复运动模糊图象（加噪声和不加噪声）
七、 编写程序实现灰度图象的分割：
1、阈值化算法：手动阈值、自动阈值(大津阈值)
2、区域生长
3、区域分裂合并-There is source code for learning C++ people one reads a grayscale image, write a program to display the image in any one pixel gray value. Second, the programming RGB color space to the HSV color space conversion, and by adjusting the H, S, V values achieve adjust image brightness, color and color saturation. Third, 1 gray linear transformation, piecewise linear transformation 2. histogram equalization 3. image normalized convolution: a variety of templates for low pass, high pass filter 4. image median filtering, the maximum filter minimum filtering, template selection pseudo-color image enhancement filter 5. four, plus 1 image, subtract, multiply, divide, and logic operations. 2. The image of image transformation, zoom images (grayscale interpolation) into five, programming image of FFT and inverse transform six, inverse filtering method and Wiener filtering method to restore motion blur image (plus noise and without noise) Seven, programming Grayscale image segmentation: 1, thresho Platform: |
Size: 1072128 |
Author:zl |
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Search - digital filter for image processing