% 读取图片 img1 = imread("C:/Users/32863/Desktop/cells1.jpg"); img2 = imread("C:/Users/32863/Desktop/cells2.jpg"); img3 = imread("C:/Users/32863/Desktop/cells3.jpg"); % 分别取 RGB 通道灰度图像 grayImg1 = rgb2gray(img1); grayImg2 = rgb2gray(img2); grayImg3 = rgb2gray(img3); %图像加法 addResult = imadd(grayImg1, grayImg2); addResult = imadd(addResult, grayImg3); % 图像减法 subResult = imsubtract(grayImg1, grayImg2); subResult = imsubtract(subResult, grayImg3); % 图像异或和同或 xorResult1 = bitxor(grayImg1, grayImg2); xorResult2= bitxor(xorResult, grayImg3); xnorResult1 = bitcmp(xorResult1); xnorResult2 = bitcmp(xorResult2); % 可视化结果 figure('Name','Image Arithmetic Operations','Units','normalized','Position',[0.2,0.2,0.6,0.6]); subplot(3,3,1), imshow(img1), title('Image 1'); subplot(3,3,2), imshow(img2), title('Image 2'); subplot(3,3,3), imshow(img3), title('Image 3'); subplot(3,3,4), imshow(addResult), title('Addition'); subplot(3,3,5), imshow(subResult), title('Subtraction'); subplot(3,3,6), imshow(xorResult1), title('XOR'); subplot(3,3,7), imshow(xorResult2), title('XOR'); subplot(3,3,8), imshow(xnorResult1), title('XNOR'); subplot(3,3,9), imshow(xnorResult2), title('XNOR');改错

读取图像的RGB值

图片信息读取

metadata-extractor-2.6.4.jar EXIF，官网很难进去，用其他软件进去的，下载给大家使用

import cv2 import numpy as np def denoise(images, ksize): avg_img = np.zeros_like(images[0], dtype = np.float32) for img in images: blur_img = c2.GaussianBlur(img.ksize. 0) avg_img += blur_img avg_img /= len(images) avg_img = np.round(avg_img).astype(np.uint8) return avg_img img1 = cv2.imread('C:/Users/Administrator/PycharmProjects/untitled1/text.png') img2 = cv2.imread('C:/Users/Administrator/PycharmProjects/untitled1/R-C.png') img3 = cv2.imread('C:/Users/Administrator/PycharmProjects/untitled1/R-C(1).png') images = [img1, img2, img3] ksize = (5, 5) denoised_img = denoise(images, ksize) cv2.imshow('Denoised Image', denoised_img) cv2.waitKey(0) cv2.destroyAllWindows() 上述代码运行之后报错显示：name 'avg_img' is not defined，该如何处理

img3 = cv2.imread('C:/Users/Administrator/PycharmProjects/untitled1/R-C(1).png') images = [img1, img2, img3] ksize = (5, 5) denoised_img = denoise(images, ksize) cv2.imshow('Denoised Image', denoised_...

帮我解释下面的代码img=cv2.imread('C:/Users/Administrator/Desktop/1.jfif'',0) img1=cv2.imread('C:/Users/Administrator/Desktop/2.jfif'',0) h,w=img1.shape[:2] size=(int(w-813),int(h-729)) print(size) shr=cv2.resize(img1,size,interpolation=cv2.INTER_AREA) dst=cv2.addWeighted(img,0.2,shr,0.8,1) cv2.imshow('py',dst) cv2.imshow('12',shr) cv2.imshow('1',img) cv2.waitKey(0)

具体地，它加载了两张图像，分别是1.jfif和2.jfif，使用了灰度模式（0）进行读取。然后，它获取了img1的高度和宽度，并计算了一个新的大小，这个大小是原图大小减去813和729。然后，它使用cv2.resize函数对img1进行...

pwd='C:/Users/10984/Desktop/字符识别测试/result/'; currentPath = pwd; %获得当前目录 imagen=imread([currentPath, 'result_7.bmp']);错误原因：错误使用 imread>parse_inputs (line 500) 文件名或 URL 参数必须为字符向量或字符串标量。出错 imread (line 340) [source, fmt_s, extraArgs, was_cached_fmt_used] = parse_inputs(cached_fmt, varargin{:});请改正代码

请将 currentPath 的值改为字符串类型，即加上引号： pwd = 'C:/Users/10984/Desktop/字符识别测试/result/'; currentPath = pwd; imagen = imread([currentPath, 'result_7.bmp']);

% 导入9张待复原的图片 img1 = imread('C:\Users\zhong\Desktop\题1\IMG_1192.JPEG'); img2 = imread('C:\Users\zhong\Desktop\题1\IMG_1193.JPEG'); img3 = imread('C:\Users\zhong\Desktop\题1\IMG_1194.JPEG'); img4 = imread('C:\Users\zhong\Desktop\题1\IMG_1195.JPEG'); img5 = imread('C:\Users\zhong\Desktop\题1\IMG_1196.JPEG'); img6 = imread('C:\Users\zhong\Desktop\题1\IMG_1197.JPEG'); img7 = imread('C:\Users\zhong\Desktop\题1\IMG_1198.JPEG'); img8 = imread('C:\Users\zhong\Desktop\题1\IMG_1199.JPEG'); img9 = imread('C:\Users\zhong\Desktop\题1\IMG_1200.JPEG'); % 将图片存储在一个单元数组中 smallImages = {img1, img2, img3, img4, img5, img6, img7, img8, img9}; % 初始化结果大图 resultSize = size(img1) * 3; % 假设结果大图为3x3的网格 resultImage = uint8(zeros(resultSize)); % 对每张图片进行边缘检测 edgeImages = cell(1, 9); for i = 1:9 grayImage = rgb2gray(smallImages{i}); edgeImage = edge(grayImage, 'Canny'); % 使用Canny算子进行边缘检测 edgeImages{i} = edgeImage; end % 计算边缘相似度矩阵 similarityMatrix = zeros(9, 9); for i = 1:9 for j = 1:9 similarityMatrix(i, j) = calculateSimilarity(edgeImages{i}, edgeImages{j}); end end % 构建最小生成树 G = graph(similarityMatrix); mst = minspantree(G); %创建一个大小为300x300的大图像 resultSize = [300 300]; resultImage = zeros(resultSize(1), resultSize(2), 3); % 每行显示3张小图像 for row = 1:3 for col = 1:3 % 计算小图像在大图像中的位置 startIndex = (col-1) * resultSize(2)/3 + 1; endIndex = col * resultSize(2)/3; % 将 smallImages{(row-1)3+col} 图像复制到对应位置 resultImage((row-1)resultSize(1)/3+1:rowresultSize(1)/3, startIndex:endIndex, :) = smallImages{(row-1)3+col}; end end % 显示结果图像 imshow(resultImage); % 计算边缘相似度的函数（这里仅示意，实际可根据需要进行修改） function similarity = calculateSimilarity(edgeImage1, edgeImage2) similarity = sum(edgeImage1(:) == edgeImage2(:)) / numel(edgeImage1); end为什么生成图片空白，如何解决

img2 = imread('C:\Users\zhong\Desktop\题1\IMG_1193.JPEG'); img3 = imread('C:\Users\zhong\Desktop\题1\IMG_1194.JPEG'); img4 = imread('C:\Users\zhong\Desktop\题1\IMG_1195.JPEG'); img5 = imread('C:\Users...

% 导入9张待复原的图片 img1 = imread('C:\Users\zhong\Desktop\题1\IMG_1192.JPEG'); img2 = imread('C:\Users\zhong\Desktop\题1\IMG_1193.JPEG'); img3 = imread('C:\Users\zhong\Desktop\题1\IMG_1194.JPEG'); img4 = imread('C:\Users\zhong\Desktop\题1\IMG_1195.JPEG'); img5 = imread('C:\Users\zhong\Desktop\题1\IMG_1196.JPEG'); img6 = imread('C:\Users\zhong\Desktop\题1\IMG_1197.JPEG'); img7 = imread('C:\Users\zhong\Desktop\题1\IMG_1198.JPEG'); img8 = imread('C:\Users\zhong\Desktop\题1\IMG_1199.JPEG'); img9 = imread('C:\Users\zhong\Desktop\题1\IMG_1200.JPEG'); % 将图片存储在一个单元数组中 smallImages = {img1, img2, img3, img4, img5, img6, img7, img8, img9}; % 初始化结果大图 resultSize = size(img1) * 3; % 假设结果大图为3x3的网格 resultImage = uint8(zeros(resultSize)); % 对每张图片进行边缘检测 edgeImages = cell(1, 9); for i = 1:9 grayImage = rgb2gray(smallImages{i}); edgeImage = edge(grayImage, 'Canny'); % 使用Canny算子进行边缘检测 edgeImages{i} = edgeImage; end % 计算边缘相似度矩阵 similarityMatrix = zeros(9, 9); for i = 1:9 for j = 1:9 similarityMatrix(i, j) = calculateSimilarity(edgeImages{i}, edgeImages{j}); end end % 构建最小生成树 G = graph(similarityMatrix); mst = minspantree(G); %创建一个大小为300x300的大图像 resultSize = [300 300]; resultImage = zeros(resultSize(1), resultSize(2), 3); % 每行显示3张小图像 for row = 1:3 for col = 1:3 % 计算小图像在大图像中的位置 startIndex = (col-1) * resultSize(2)/3 + 1; endIndex = col * resultSize(2)/3; % 将 smallImages{(row-1)3+col} 图像复制到对应位置 resultImage((row-1)resultSize(1)/3+1:rowresultSize(1)/3, startIndex:endIndex, :) = smallImages{(row-1)3+col}; end end % 显示结果图像 imshow(resultImage); % 计算边缘相似度的函数（这里仅示意，实际可根据需要进行修改） function similarity = calculateSimilarity(edgeImage1, edgeImage2) similarity = sum(edgeImage1(:) == edgeImage2(:)) / numel(edgeImage1); end，运行显示图片空白，如何处理

你可以使用imread函数读取图片前，可以先使用exist函数检查文件是否存在。 2. 图片格式不支持：请确保你读取的图片格式是被支持的格式，比如JPEG、PNG等。你可以使用imformats函数查看Matlab支持的图片格式。...

将代码中图片改为灰度图import matplotlib.pyplot as plt import matplotlib.image as mping import numpy as np img = mping.imread('D:\作业\兵马俑.jpg') plt.figure(1) plt.imshow(img) a = img.shape[0] b = img.shape[1] # 只保留左半部分，右半部分置为白色 img2 = np.ones((a, b, 3), dtype=np.uint8) * 255 img2[:, :b//2, :] = img[:, :b//2, :] img2[:, b//2:, :] = 255 plt.figure(2) plt.imshow(img2) # 左右镜像 img3 = np.ones((a, b, 3), dtype=np.uint8) * 255 img3[:, :b//2, :] = img[:, :b//2, :] img3[:, b//2:, :] = np.fliplr(img[:, :b//2, :]) plt.figure(3) plt.imshow(img3)

img = mping.imread('D:\作业\兵马俑.jpg') gray_img = np.dot(img[...,:3], [0.299, 0.587, 0.114]) # 将彩色图片转换为灰度图 plt.figure(1) plt.imshow(gray_img, cmap='gray') a = gray_img.shape[0] b = ...

% 读取图片 img1 = imread('image1.jpg'); img2 = imread('image2.jpg'); % 调整图片大小 [height1, width1, ~] = size(img1); [height2, width2, ~] = size(img2); new_height = max(height1, height2); new_width = width1 + width2; img1 = imresize(img1, [new_height, NaN]); img2 = imresize(img2, [new_height, NaN]); % 创建新图片 new_img = uint8(zeros(new_height, new_width, 3)); new_img(:, 1:width1, :) = img1; new_img(:, width1+1:end, :) = img2; % 保存新图片 imwrite(new_img, 'new_image.jpg'); 将这段代码改为六张的拼接的代码

img1 = imread('image1.jpg'); img2 = imread('image2.jpg'); img3 = imread('image3.jpg'); img4 = imread('image4.jpg'); img5 = imread('image5.jpg'); img6 = imread('image6.jpg'); % 调整图片大小 [height1, ...

import matplotlib.pyplot as plt import matplotlib.image as mping import numpy as np img = mping.imread('D:\作业\哆啦a梦.jpg') plt.figure(1) plt.imshow(img) a = img.shape[0] b = img.shape[1] # 只保留左半部分，右半部分置为白色 img2 = np.ones((a, b, 3), dtype=np.uint8) * 255 img2[:, :b//2, :] = img[:, :b//2, :] img2[:, b//2:, :] = 255 plt.figure(2) plt.imshow(img2) # 左右镜像 img3 = np.ones((a, b, 3), dtype=np.uint8) * 255 img3[:, :b//2, :] = img[:, :b//2, :] img3[:, b//2:, :] = np.fliplr(img[:, :b//2, :]) plt.figure(3) plt.imshow(img3)完善代码

img = mping.imread('D:\作业\哆啦a梦.jpg') plt.figure(1) plt.imshow(img) a = img.shape[0] b = img.shape[1] # 只保留左半部分，右半部分置为白色 img2 = np.ones((a, b, 3), dtype=np.uint8) * 255 img2[:, :...

错误使用 imread>parse_inputs (line 500) 文件名或 URL 参数必须为字符向量或字符串标量。错误代码：pwd='C:/Users/10984/Desktop/字符识别测试/result'; currentPath = pwd; imagen=imread(fullfile(currentPath, 'result_7.bmp'));改正错误

pwd='C:/Users/10984/Desktop/字符识别测试/result'; currentPath = pwd; imagen=imread(fullfile(currentPath{1}, 'result_7.bmp')); 或者，你也可以直接使用字符串拼接的方式，例如： pwd='C:/Users/...

import matplotlib.pyplot as pltimport matplotlib.image as mpingimport numpy as npimg = mping.imread('D:/作业/哆啦a梦.jpg')plt.figure(1)plt.imshow(img)a = img.shape[0]b = img.shape[1]# 只保留左半部分，右半部分置为白色img2 = np.ones((a, b, 3), dtype=np.uint8) * 255img2[:, :b//2, :] = img[:, :b//2, :]img2[:, b//2:, :] = 255plt.figure(2)plt.imshow(img2)# 左右镜像img3 = np.ones((a, b, 3), dtype=np.uint8) * 255img3[:, :b//2, :] = np.fliplr(img[:, b//2:, :])img3[:, b//2:, :] = imgplt.figure(3)plt.imshow(img3)修改

2. mping.imread函数读取了一张图片，存储在变量img中。 3. plt.figure(1)创建了一个新的Figure对象，用于显示原始图片。 4. plt.imshow(img)将读取到的图片显示在Figure对象上。 5. a和b分别存储了图片...

import cv2 import numpy as np import matplotlib.pyplot as plt img0 = cv2.imread("C:/Users/ThinkBook/Desktop/1.jpg") img1 = cv2.resize(img0, dsize = 1, fx = 0.5, fy = 0.5) img2 = cv2.cvtColor(img1, cv2.COLOR_BGR2GRAY) h, w = img1.shape[:2] print(h, w) cv2.namedWindow("W0") cv2.imshow("W0", img2) cv2.waitKey(delay = 0)

这段代码的作用是读取一张名为"1.jpg"的图像，将其缩小一倍并转换为灰度图像，然后在窗口中显示该图像。具体来说：第1行导入了cv2、numpy和matplotlib.pyplot模块；第2行读取名为"1.jpg"的图像，存储在变量img0...

[ WARN:0@38.138] global D:\a\opencv-python\opencv-python\opencv\modules\imgcodecs\src\loadsave.cpp (239) cv::findDecoder imread_('C:/Users/asus/Desktop/UI界面/YoloV5_PyQt5-main(原版)/data/images/bus.jpg'): can't open/read file: check file path/integrity Traceback (most recent call last): File "C:/Users/asus/Desktop/UI界面/YoloV5_PyQt5-main(原版)/detect_logical.py", line 168, in button_image_open info_show = self.detect(name_list, img) File "C:/Users/asus/Desktop/UI界面/YoloV5_PyQt5-main(原版)/detect_logical.py", line 124, in detect img = letterbox(img, new_shape=self.opt.img_size)[0] File "C:\Users\asus\Desktop\UI界面\YoloV5_PyQt5-main(原版)\utils\datasets.py", line 820, in letterbox shape = img.shape[:2] # current shape [height, width] AttributeError: 'NoneType' object has no attribute 'shape' img_name: C:/Users/asus/Desktop/UI界面/YoloV5_PyQt5-main(原版)/data/images/bus.jpg python-BaseException 进程已结束,退出代码-805306369 (0xCFFFFFFF)

根据错误提示，您的程序在读取文件 "C:/Users/asus/Desktop/UI界面/YoloV5_PyQt5-main(原版)/data/images/bus.jpg" 时出现了问题。请确保文件路径正确，并检查文件是否存在。此外，还要检查文件的格式是否正确。如果...

import cv2 import numpy as np print('loading ...') def showpiclocation(myimg, myimg1): # 定义定位函数 # 定位图片 h,w = myimg.shape # 返回img的第二维度长度---宽度 fh,fw = myimg1.shape # 返回img的第一维度长度---高度 findpt = None for now_h in range(0, h - fh): for now_w in range(0, w - fw): comp_tz = myimg[now_h:now_h + fh, now_w:now_w + fw, :] - myimg1 if np.sum(comp_tz) < 1: findpt = now_w, now_h print(".") if findpt != None: cv2.rectangle(myimg, findpt, (findpt[0] + fw, findpt[1] + fh), (0, 0, 255)) # opencv函数画矩形 else: print("Target image not found!") return myimg fn = 'C:/Users/王鑫楠/Desktop/金城武.png' fn1 = 'C:/Users/王鑫楠/Desktop/小金城武.png' #fn2 = 'pictestt2.png' myimg = cv2.imread(fn) myimg1 = cv2.imread(fn1) #myimg2 = cv2.imread(fn2) myimg = showpiclocation(myimg, myimg1) #myimg = showpiclocation(myimg, myimg2) cv2.namedWindow('img') cv2.imshow('img', myimg) cv2.waitKey() cv2.destroyAllWindows()代码报错AttributeError: 'NoneType' object has no attribute 'shape'，请说明原因并改正

代码中出现了NoneType的错误，通常这意味着cv2.imread()函数返回了None，即无法读取图片。可能的原因是文件路径错误或文件不存在。请检查文件路径是否正确，并确保文件存在。另外，您需要将导入语句放在代码的开头...

Mat img = imread("C:/yangben/images/test/a1.jpg");

Mat img = imread("C:/yangben/images/test/a1.jpg"); imread函数接受一个字符串参数，这个字符串是图像文件的路径。在这个例子中，路径是"C:/yangben/images/test/a1.jpg"，表示要读取位于C:/yangben/...

img0=imread('/Users/aa/Desktop/截屏2023-05-31 16.55.11 1.png'); img0=rgb2gray(img0); img0=double(img0); gauss=[1 2 1;2 4 2;1 2 1]/16; sobelx=[-1 0 1;-2 0 2;-1 0 1]; sobely=sobelx'; img=conv2(img0,gauss,'same'); gardx=conv2(img,sobelx,'same'); gardy=conv2(img,sobely,'same');

首先使用imread函数读取了一张图片，并使用rgb2gray函数将其转换为灰度图像。然后将灰度图像转换为双精度型。接下来定义了一个高斯滤波器的卷积核gauss和Sobel算子的卷积核sobelx和sobely。使用conv2函数对图像进行...

帮我写一段代码，用来比较C://Users//1//Pictures//9.jpg与C://Users//1//Pictures//20.jpg图片的相似度

image2_path = "C://Users//1//Pictures//20.jpg" similarity_score = compare_images(image1_path, image2_path) print("相似度：", similarity_score) 请确保你已经安装了OpenCV库，并将图片路径替换为你...

% 读取图片 img1 = imread("C:/Users/32863/Desktop/boy.jpg"); img2 = imread("C:/Users/32863/Desktop/boy-blocks.jpg"); % 将图片转换为灰度图像 gray1 = rgb2gray(img1); gray2 = rgb2gray(img2); % 两张图片进行加法运算 add_result = imadd(gray1, gray2); % 两张图片进行减法运算 sub_result = imsubtract(gray1, gray2); % 两张图片进行异或运算 xor_result = bitxor(gray1, gray2); % 两张图片进行同或运算 xnor_result = bitcmp(xor_result); % 可视化结果 figure(); subplot(2,3,1), imshow(img1), title('Image 1'); subplot(2,3,2), imshow(img2), title('Image 2'); subplot(2,3,4), imshow(add_result), title('Addition'); subplot(2,3,5), imshow(sub_result), title('Subtraction'); subplot(2,3,6), imshow(xor_result), title('XOR'); subplot(2,3,7), imshow(xnor_result), title('XNOR');改错

img1 = imread("C:/Users/32863/Desktop/boy.jpg"); img2 = imread("C:/Users/32863/Desktop/boy-blocks.jpg"); % 将图片转换为灰度图像 gray1 = rgb2gray(img1); gray2 = rgb2gray(img2); % 两张图片进行加法运算...

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错误使用 imread>parse_inputs (line 500) 文件名或 URL 参数必须为字符向量或字符串标量。错误代码：pwd='C:/Users/10984/Desktop/字符识别测试/result'; currentPath = pwd; imagen=imread(fullfile(currentPath, 'result_7.bmp'));改正错误

Mat img = imread("C:/yangben/images/test/a1.jpg");

img0=imread('/Users/aa/Desktop/截屏2023-05-31 16.55.11 1.png'); img0=rgb2gray(img0); img0=double(img0); gauss=[1 2 1;2 4 2;1 2 1]/16; sobelx=[-1 0 1;-2 0 2;-1 0 1]; sobely=sobelx'; img=conv2(img0,gauss,'same'); gardx=conv2(img,sobelx,'same'); gardy=conv2(img,sobely,'same');

帮我写一段代码，用来比较C://Users//1//Pictures//9.jpg与C://Users//1//Pictures//20.jpg图片的相似度

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