Tricks and tips for everyone


How do I save a high resolution image in MATLAB?

How do I save a high resolution image in MATLAB?

To save a figure as an image at a specific resolution, call the exportgraphics function, and specify the ‘Resolution’ name-value pair argument. By default, images are saved at 150 dots per inch (DPI). For example, create a bar chart and get the current figure. Then save the figure as a 300-DPI PNG file.

How do I save a .FIG file in MATLAB?

To save the current figure, specify fig as gcf . saveas( fig , filename , formattype ) creates the file using the specified file format, formattype .

Can you save a MATLAB plot as a JPEG image?

Save Plots Interactively The export button supports three image formats (PNG, JPEG, and TIFF), as well as PDF files, which can contain images or vector graphics, depending on the content in the axes.

How do I increase the resolution of a MATLAB figure?

Check out the MATLAB print documentation to see all the print options you can adjust like this. File menu: Or using ‘File -> Export Setup…’, on the left select ‘Rendering’, then adjust the ‘Resolution (dpi)’. By default it set to ‘auto’.

How do you change the resolution of an image in MATLAB?

MATLAB does not have an “increase resolution” function. It has an image resize operation, but image resizing does not increase resolution. In order to increase resolution, you need additional information beyond what is in the image itself.

How do I set DPI in MATLAB?

If it is only a single figure, use the GUI of the export-setup. File > Export Setup > Rendering > Resolution (dpi) + don’t forget to click Apply to Figure.

What is FIG file in MATLAB?

A FIG file contains a figure created by The MathWorks MATLAB, an application used for mathematical computations. It stores one or more plots or graphs, which are used to visualize data. In MATLAB, a figure is the window that contains graphics output from mathematical data.

How do I use a .FIG file?

You need a suitable software like MATLAB to open a FIG file. Without proper software you will receive a Windows message “How do you want to open this file?” or “Windows cannot open this file” or a similar Mac/iPhone/Android alert. If you cannot open your FIG file correctly, try to right-click or long-press the file.

How do I export an image from MATLAB?

To export data from the MATLABĀ® workspace using one of the standard graphics file formats, use the imwrite function. Using this function, you can export data in formats such as the Tagged Image File Format (TIFF), Joint Photographic Experts Group (JPEG), and Portable Network Graphics (PNG).

How do I reduce the pixels of an image in MATLAB?

Shrink the image by a factor of two. J = imresize(I, 0.5); Display the original image and the resized image.

How do I reduce the spatial resolution of an image in MATLAB?

Direct link to this answer

  1. A=uint8(randi(255,1666,1200,3));%generate random 2MP image.
  2. dims=size(A);dims=dims(1:2);%determine rows and cols.
  3. dims=round(dims/sqrt(2));%determine new dimensions for 1MP.
  4. B=imresize(A,dims);

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