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This article introduces the relevant knowledge of "how to use Krita software to edit photos under the Linux system". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Figure 1: dwarf goat Annabelle

Krita is not only a great drawing application, but also a great photo editor. Today we will learn how to add text to a picture and how to selectively sharpen a part of the photo.

Introduction to Krita

Like other drawing / mapping applications, Krita has hundreds of built-in tools and options, as well as a variety of processing methods. So it's worth taking some time to learn about it.

Krita uses dark themes by default. I don't like dark themes very much, but luckily Krita has other great themes that you can change at any time through Settings > themes on the menu.

Krita uses window docking style toolbars.

If the Dock toolbars on the left and right panels are not displayed, check the Settings > Show Toolbars option, and you can also adjust the toolbars to your preference in Settings > Toolbars. But hidden toolbars may make you feel a little unpleasant. They only unfold in a narrow, flattened area, and you can't see anything in them. You can drag them to the top or to the side of the Krita window, zoom in or out, or even drag them out of the Krita and place them anywhere on your display. If you drag one of the toolbars onto another, they are automatically merged into one.

When you have configured a satisfactory workspace, you can save it in the "Select Workspace". You can find "Select Workspace" on the right side of the brush toolbar (turn on display via Settings > display sidebar). There are different configurations for the workspace, but you can also create your own (figure 2).

Figure 2: save the user-customized workspace in the Select Workspace.

There are multiple scaling control methods in Krita. Ctrl + "=" zooms in, Ctrl + "-" zooms out, and Ctrl + "0" resets to 100% zoom. You can also control it through View > Zoom, or through the zoom bar in the lower right corner. There is also a drop-down zoom menu on the left side of the zoom bar.

The tools menu is located on the left side of the window and contains sharpening and selection tools. You must move the cursor over each tool to view its label. The tool options bar always displays the options for the tool currently in use, and by default the tool option bar is located on the right side of the window.

Cutting tool

Of course, there are cutting tools in the tools menu bar, and they are very easy to use. Circle the area you want to select in a rectangle, use drag and drop to adjust the selection, and click the back button when you are done. In the tool bar, you can choose whether to apply trimming to all layers or only to the current layer, resizing by entering a specific value or a percentage.

Add text

When you want to add simple text such as tags or descriptions to photos, Krita may dazzle you because it has so many WordArt effects to choose from. But Krita also supports the addition of simple text. Click on the text toolbar and you will see the tool options bar as shown in figure 3.

Figure 3: text options.

Click the expand button.

This displays the simple text tool; first draw a rectangular text box, and then enter text in the text box. There are all the commonly used text formatting options in the tool bar: text selection, text size, text and background color, margins, and a range of graphic styles. But after you finish processing the text, click the appearance processing tool, the button of the appearance processing tool is a white arrow, next to the text tool button, you can adjust the overall size, appearance and position of the text. The tool options for the appearance processing tool include a variety of different lines, colors, and margins. Figure 4 is a picture with a happy title that I sent to my relatives who live in the city.

Photo 4: come to the green farm.

What do you do with the text that already exists in your photo? Click the appearance processing tool and double-click in the text area. This puts the text into edit mode, as can be seen from the cursor that appears in the text box. Now you can start selecting text, adding text, changing formatting, and so on.

Sharpen the selection

Krita has a lot of great tools for appearance editing. In figure 5, I want to sharpen Annabelle's face and eyes. Annabelle lives next door, but she likes my dog very much and has stayed with me for a long time. My dog ran away for fear of her, but she was not discouraged at all. ) first select an area through the shape selection tool. Then open filter > Enhancement > Virtual Edge Mask. You can adjust three variables: the half-length value, the total value, and the threshold. Most image editing software has settings for radius, total quantity, and threshold. The radius is half the diameter, so the "half-long value" is technically correct, but it can cause unnecessary confusion.

Figure 5: select any area to edit.

The half-length value determines the thickness of the sharpened line. You need a number large enough to produce better results, but obviously, don't be too large.

The threshold determines the difference between the two pixels during sharpening. "0" is the maximum value for sharpening, and "99" means no sharpening.

The total amount controls the sharpening intensity; the higher the value, the higher the sharpening degree.

Sharpening is basically the last step in dealing with photos, because it has to do with everything you do with photos: trimming, resizing, color, chromatic aberration. If you sharpen first and then do anything else, your sharpening effect will become a mess.

Next, you have to ask, what does "virtual mask" mean? The name comes from the sharpening technique: the virtual mask filter covers the original image with a blurred mask, which is then layered on top of the mask. This will make the image sharper and clearer than direct sharpening.

This is the end of the content of "how to use Krita software to edit photos under the Linux system". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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