% Read a grayscale image into the workspace and display it.I=imread('circuit.tif');imshow(I)...
% Scale the image imageToThreshold = 20000 * mat2gray(grayImage) - 5000; % Verify them minDblGL = min(imageToThreshold(:)); maxDblGL = max(imageToThreshold(:)); fprintf('Before scaling, min gray level = %.1f, max gray level = %.1f\nAfter scaling, min gray level = %.1f, max ...
A grayscale image, sometimes referred to as anintensityimage, is stored as anm-by-ndata matrix,X, whose values represent intensities within some range. A grayscale image is represented as a single matrix, with each element of the matrix corresponding to one image pixel. While grayscale image...
Read and Display Grayscale Image Copy Code Copy Command Load the grayscale image into the workspace and display it. Get X = imread("corn_gray.png"); imshow(X) You can display the grayscale image using a different colormap. For example, display the grayscale image in shades of blue an...
imt=imread(dest);%readtargetimage ims=imread(src);%readsourceimage [tx,ty,tz]=size(imt);%getsizeoftargetimage [~,~,sz]=size(ims);%get3rddimofsource iftz~=1%convertthedestinationimagetograyscaleifnotalready imt=rgb2gray(imt); end
function [X, map, alpha] = imread(varargin)%IMREAD Read image from graphics file.% A = IMREAD(FILENAME,FMT) reads a grayscale or color image from the% file specified by the string FILENAME, where the string FMT specifies% the format of the file. See the reference page, or the output...
Read image from graphics file Syntax A = imread(filename, fmt) [X, map] = imread(...) [...] = imread(filename) [...] = imread(URL,...) [...] = imread(...,Param1,Val1,Param2,Val2...) Description A = imread(filename, fmt) reads a grayscale or color image from the...
Add Noise to an Image Copy Code Copy Command Read a grayscale image and display it. Get I = imread('eight.tif'); imshow(I) Add salt and pepper noise, with a noise density of 0.02, to the image. Display the result. Get J = imnoise(I,'salt & pepper',0.02); imshow(J)Input ...
我们还添加了colorbar，以便更直观地展示曲面的颜色变化。'SouthOutside');xlabel('x: Columns','Rotation',15,'FontWeight','bold'),ylabel('y: Rows ','Rotation',-25,'FontWeight','bold'),zlabel('Grayscale Value','FontWeight','bold');shading interp; % 光滑渲染曲面xlim([0 max(x(:))])...
% ColorType A string indicating the type of image; this could% include, but is not limited to, 'truecolor' for a% truecolor (RGB) image, 'grayscale', for a grayscale% intensity image, or 'indexed' for an indexed image.%% If FILENAME contains Exif tags (JPEG and TIFF only), ...