文件名称:
【MATLAB源码】图片数据点提取.zip
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文件大小: 25kb
下载次数: 0
上传时间: 2019-06-09
详细说明：
function GRABIT Extracts data points from an image file. % % GRABIT starts a GUI program for extracting data from an image file. % It is capable of reading in BMP, JPG, TIF, GIF, and PNG files (anything % that is readable by IMREAD). Multiple data sets can be extracted from a % single image file, and the data is saved as an n-by-2 matrix variable in % the workspace. It can also be renamed and saved as a MAT file. % % Following steps should be taken: % 1. Load the image file. % 2. Calibrate axes dimensions. You will be prompted to select 4 points % on the image. Zoom and pan enabled. % 3. Grab points by clicking on points. Right-click to delete a point. % Image can be zoomed and panned. % 4. Multiple data sets will remain in memory so long as the GUI is open. % Variables can be renamed, saved to file, or edited in Array Editor. % % Panning is achieved by clicking and dragging on the image. Double-click % to center view. Right click and drag to zoom in and out. In addition, % there are keyboard shortcuts for zooming: % - zoom in % - zoom out % - reset view % % This code will also work for extracting data points from a tilted or a % skewed image (even upside-down or mirrored). The calibration stage % ensures that the imperfect orientation or quality of the image is % accounted for. % % The types of files that will most likely work are BMP, JPG, TIF, GIF (up % to 8-bit), and PNG files. Basically, any format supported by the IMREAD % is accepted. % % GRABIT(FILENAME) will start the GUI program and open the image file % FILENAME.
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