To calculate the Signal-to-Noise Ratio (SNR) for a color image, simply open the image file in MATLAB and input the file path of the image. This process allows you to determine the SNR in decibels for the image based on its signal and noise characteristics.
Calculate Signal-to-Noise Ratio(SNR)for Color Images in MATLAB
相关推荐
MATLAB_Sinusoidal_Signal_Modulation_With_Noise_Animation_Simulation
利用MATLAB实现正弦信号的带有噪声的调制仿真,并且具有动画效果。
程序实现流程:
首先,定义正弦信号:matlabf = 50; % 频率 (Hz)t = 0:0.001:1; % 时间向量signal = sin(2*pi*f*t); % 生成正弦信号
为信号添加噪声:matlabnoise = 0.2 * randn(size(signal)); % 添加高斯噪声modulated_signal = signal + noise; % 调制信号
绘制和动画效果:```matlabfigure;h = plot(t, signal, 'b'); % 初始化图形xlabel('Time (s)'); ylabel('Amplitude');title('Sinusoidal Signal with Noise');ylim([-1.5 1.5]);grid on;
% 动画展示for i = 1:length(t)set(h, 'YData', modulated_signal(1:i));pause(0.01); % 调整动画速度end```
通过上述代码,生成带有噪声的调制波,并实现动态展示效果。
Matlab
0
2024-11-05
Color Transfer Between Images using Image Mean Subtraction in MATLAB-DIP Course Project
This project implements the technique of color transfer between images as described in the paper by Erik Reinhard, Michael Ashikhmin, Bruce Gooch, and Peter Shirley. One of the most common tasks in image processing is changing the colors of an image. This article presents a more general color correction method, which borrows color characteristics from one image to apply to another. The algorithm follows these steps:
RGB to ℓαβ color space conversion: The transformation of the RGB color space into the ℓαβ color space, where the ℓ axis represents the lightness channel, and the α and β channels represent the color-opponent yellow-blue and red-green channels, respectively.
Statistical and color correction: First, the mean value is subtracted from each channel's data points. Then, the data points are scaled by factors determined by the standard deviation of each respective channel.
Final conversion to RGB: The result is converted back into the RGB color space.
The MATLAB code for this procedure is contained in the color_transfer_built.m file. In lines 3 and 4 of the file, the source and target variables are modified to change the source and target images for color transfer.
Matlab
0
2024-11-05
Change Aspect Ratio in MATLAB for Better Visualization
改变图形的长宽比例
有时为了美观,需要改变一下图形的长宽比例。用如下的语句就可以实现:
set(gca, 'position', [x0, y0, xL, yL])
其中,x0、y0表示axes的位置;xL、yL表示axes的长和宽。
Matlab
0
2024-11-04
Color Map Generator Create Maps with Two Boundary Colors and One Center Color in MATLAB
使用两种边界颜色和一种中心颜色创建颜色图。此方法在包含正值和负值时非常有用,中心颜色(通常为白色)代表零。用户可以定义边界和中心颜色,以及组成颜色图的段数。所有颜色输入需采用RGB三元组格式(例如[0 0 0]表示黑色)。生成颜色图后,使用:colormap(gca,newColormapName)上传到当前图形。请参阅函数文本(注释)以获取进一步的描述和示例用法。如果存在任何错误,请告诉我。
Matlab
0
2024-11-04
Face Detection in Static Images Using MATLAB
本程序可以进行人脸检测,并且用矩形框出人脸位置。适合初学者使用,是个比较好的工具。
Matlab
0
2024-11-04
Generating Adversarial Networks in MATLAB Counting Images
生成对抗神经网络MATLAB代码
生成对抗神经网络的MATLAB代码已被弃用。建议使用NeuralTalk2,它比旧版本快约100倍,支持在GPU上进行批处理和CNN微调。此项目包括使用Python和Numpy的源代码,通过多模态循环神经网络为图像生成描述。
项目概述
输入数据为使用Amazon Mechanical Turk收集的图像及其5个句子描述。训练阶段中,图像作为输入,RNN根据上下文预测句子中的单词,网络的参数在这一过程中不断更新。
Matlab
0
2024-11-04
Mahmoud_Aldababsa_BFSK_Noise_Matlab_Development
本项目涉及Mahmoud_Aldababsa_BFSK_Noise算法的Matlab开发。其主要目标是实现BFSK调制下的噪声模拟,通过Matlab工具进行仿真和分析,以评估在不同噪声条件下系统的性能。该模型包含信号生成、噪声添加、信号恢复等多个阶段,适用于研究通信系统的鲁棒性。
Matlab
0
2024-11-05
MATLAB Image Color Balance Code Implementation
我自己写的图像色彩平衡代码,其中h(i)为r、g、b的平均值,lh为h(i)的平均值,h(i)/lh-1为平衡基,s(i)为加权系数。
Matlab
0
2024-11-03
GNSS SNR计算代码
本代码从RINEX文件中提取SNR数据,并计算卫星的方位角和仰角。
Matlab
2
2024-05-25