= imread(.,idx) reads in one image from a multi-image icon or cursor file. PNM is not a file format itself it is a common name for any of the other three members of the Portable Bitmap family of image formats: Portable Bitmap (PBM), Portable Graymap (PGM) and Portable Pixel Map (PPM). Note that, for certain formats, imread may take additional parameters, described in Special Case Syntax. You can also get a list of all supported formats by using the imformats function. ![]() This table lists the possible values for fmt. The URL must include the protocol type (e.g., Formats ![]() = imread(filename) attempts to infer the format of the file from its content. The colormap values are rescaled to the range. = imread(filename, fmt ) reads the indexed image in filename into X and its associated colormap into map. See Formats for a list of all the possible values for fmt. If imread cannot find a file named filename, it looks for a file named filename. If the file is not in the current directory or in a directory in the MATLAB path, specify the full pathname of the location on your system. If the file contains a truecolor (RGB) image, A is a three-dimensional ( m-by- n-by-3) array.įilename is a string that specifies the name of the graphics file, and fmt is a string that specifies the format of the file. If the file contains a grayscale intensity image, A is a two-dimensional array. ![]() See Special Case Syntax for information about these syntaxes.Ī = imread(filename, fmt ) reads a grayscale or truecolor image named filename into A. The imread function also supports several other format-specific syntaxes. The imread function supports four general syntaxes, described below. = imread(.,'BackgroundColor',BG) ( PNG only) = imread(.,idx) ( CUR, ICO, and TIFF only) Imread (MATLAB Functions) MATLAB Function Reference
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