Note: When resizing an image in freehand mode you may retain the currently-set aspect ratio by holding Shift while dragging on any of the resize controls. Note that you can only add new entries for ratios not already present in the drop-down list.įinally, the button beside the aspect combobox allows you to switch between portrait and landscape orientation if you have selected a rectangular aspect ratio. Here “ foo” defines the name of the new aspect ratio and “ x” and “ y” the corresponding numerical values ( x and y must be integers). If you want to add an aspect ratio to the pre-defined drop-down list you can do this by including a line of the form “ plugins/darkroom/clipping/extra_aspect_ratios/foo=x:y” in darktable’s configuration file $HOME/.config/darktable/darktablerc. You can also enter any other ratio after opening the combobox by typing it in the form of “x:y” or as a decimal (e.g. square: Constrains the aspect ratio to be 1:1.original image: Retain the aspect ratio of the original image.freehand: Crop without any restrictions.A few special aspect ratios deserve explanation: Many common numerical ratios are pre-defined. The crop module controls are split into two sections as follows: □crop settings aspect Set the aspect ratio of the crop, constraining the width:height ratio of the crop rectangle to the chosen aspect. Commit changes by giving focus to another module. Constrain movement to the horizontal/vertical axis by holding Ctrl/Shift, respectively while dragging. Move the crop rectangle by clicking and dragging inside the crop area. Resize the crop by dragging the border and corner handles. Whenever this module is in focus, the full uncropped image will be shown, overlaid with crop handles and optional guiding lines. For best results, you are advised to use the rotate and perspective module to perform rotation and perspective correction (if required), and then perform final creative cropping with this module. The following includes information on each feature of the export module.This module appears later in the pipeline than the deprecated crop and rotate module, meaning that the full image can remain available for source spots in the retouch module. However, it will not be an in-depth view of every aspect of each option. That would be impossible to do in one article. In fact, entire books have been written on some of the options… color profiles and color spaces. I’ll provide the necessary information you’ll need to know, and it will be up to you to do further research. To export your images, make sure you’re in the lighttable module to access it. It’s located at the bottom of the right panel. Although JPEG is the most common use to save your images, the export module offers various options based on your needs. The first question you need to answer is where the exported file will be saved to. This section lists that folder location on your internal drive. If the default isn’t satisfactory, click the icon to the right of the box. This will reveal the “select directory” window where you can specify the exact location.īy default, on export, your new file will be renamed. This is to ensure you don’t overwrite the original or another copy. If needed, you can select “overwrite” or “skip” as required. Either option can be chosen via the drop-down menu below the directory box. Click on “create unique filename” to access the menu. The next question you have to answer is the file type (format). JPEG is the one you’ll probably use the most, especially for social media. JPEG 8-bit: The standard bit depth for JPG files.If you have other needs, you can find the most popular choices via the drop-down menu (click on JPEG 8-bit) to access it. OpenEXR (float): A professional-grade image storage format of the motion picture industry.JPEG 2000 12-bit: Increase the bit-depth of your JPEG file. PFM (float): The Portable FloatMap Image Format is the lowest common denominator color image file format.If you have no idea what that means, you’ll never need it!.PNG 8/16-bit: A file type used to preserve transparency in a file.Not sure why this is an option since your images will most likely never have transparency.TIFF 8/15/32-bit: Provides a lossless means of saving your images.
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