![]() ![]() Right-click "Background copy #2" on the Layers panel and then click "Edit Layer Attributes" from the context menu. Right-click "Background copy #1" from the Layers panel and then click "Duplicate Layer" from the context menu. Repeat the process to create another duplicate layer so that you have three identical layers in total.Ĭlick "Background copy #1" from the Layers panel and then select "Hue" from the "Mode" drop-down list. Right-click the "Background" layer on the "Layers" panel and then select "Duplicate Layer" from the context menu. Move the mouse horizontally while holding down the left mouse button to adjust the contrast.Ĭlick "File" from the menu bar and then click "Save as" to save the lightened photo once you are satisfied with the results Layers Launch GIMP and open the photo that you want to lighten.Ĭlick anywhere on the photo and, while holding down the left mouse button, move the mouse vertically to adjust the brightness. ![]() Click "File" from the menu bar and then click "Save as" to save the lightened photo as a new file. This is to prevent the lightened image from looking too washed out.Ĭlick "OK" once you are pleased with the results. Select "Brightness-Contrast" from the drop-down list and then drag the "Contrast" slider to the right. Click the check box next to "Preview" to see the changes and click "OK" once you are pleased with the results.Ĭlick "Tools" from the menu bar and then click "Color Tools." That covers everything you’ll need to know to do batch processing in GIMP! I think you’ll agree that using BIMP for batch processing is much simpler than trying to learn GIMP’s batch-processing scripts! GIMP is arguably the most powerful open-source image editor, but every so often, it reminds us that it still has a ways to go in the user experience department.Select "Levels" from the drop-down list to open a new window where you are able to adjust the color levels.Ĭlick and drag the middle triangular slider in the "Input Levels" section to the left to lighten the photo. Once all the settings are configured to your satisfaction, click the Apply button in the bottom right, and GIMP will begin processing your images automatically. It’s also important to make sure that you choose your output folder carefully for the same reason: you don’t want to overwrite your original files, especially when you’re first learning how to use BIMP. It’s usually simplest to store a copy of all of the images you want to batch process in a separate folder since this also helps to prevent accidentally overwriting your unedited source files. To use BIMP, open the File menu and click Batch Image Manipulation… Once the installation is complete, launch GIMP as you normally would, and BIMP will be loaded automatically. Make sure you don’t download BIMP from an unofficial source! How to Use BIMP for Batch Processing macOS will still give you a warning message, but this time you’ll have the option to go ahead and open the file anyways.Īs long as you downloaded the file from the official GitHub page as directed above, there is no need to be concerned that the plugin will contain malware. ![]() To get around this, right-click or ctrl+click the “install” file and click Open in the popup menu. Your Mac will probably give you a warning message informing you that the program cannot be executed because it comes from an unknown developer. Open the new folder, and double-click the file named “install”. macOS will create a new folder with the same name and place the decompressed files inside the new folder. Once the download is complete, open your Downloads folder and double-click the downloaded file to expand it. If you’re installing BIMP on a Windows PC, all you have to do is run the installer program and follow the on-screen prompts. Installing BIMPĭownload the appropriate version for your operating system from the official website. BIMP is the brainchild of Italian computer scientist Alessandro Francesconi, and he gives away the plugin for free on his website. The most popular batch-processing plugin for GIMP is named BIMP, which stands for Batch Image Manipulation Plugin. Because GIMP is open source, anyone with software development experience can create plugins. One of the greatest features of GIMP is the ability to add new features by installing plugins that have been developed by the user community.Īs you might guess from the name, a plugin is a small piece of software that integrates with a larger program such as GIMP. Method 2: Make Batch Processing Easy With a Plugin Those of you who are comfortable with scripting can use the Script-Fu console along with the Procedure Browser to run any commands you want, but the rest of us will be using the BIMP method described in the next section. ![]()
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