Robust face restoration help page


The popup window exhibits a similar layout to the main window, where the image for enhancement is selected. It consists of three main components: tab, image view area, and top toolbar. This window specifically caters to robust face restoration and mild background enhancement, utilizing a 3rd party integrated API tool.

The Tab

The tab serves the purpose of configuring the driving elements of the API tool for image restoration. For convenience, users can choose from predefined settings by clicking the Select from presets button. Alternatively, custom parameter settings can be modified for face restoration, background restoration, zoom factor, fidelity, and quality.

1. Face Restoration: This feature upsamples restored faces for high-resolution images.

2. Background Restoration: Enhances the background in an image using the Real-ESRGAN algorithm.

3. Zoom Factor Settings: Located below the Background Restoration checkbox, this section allows users to specify the desired zoom level for the image. Keep in mind that higher zoom factors will require more time for the API to enhance the image.

4. Fidelity and Quality Slider: Found below the Zoom Factor, this slider is used to set the fidelity and quality of the image. Fidelity determines how realistic the image should appear, regardless of its lower quality. Higher quality images may deviate further from the real image. The default value is set to 0.7, where lower values indicate higher quality and lower fidelity.

5. API Key Entry: This element in the right tab allows users to enter their specific API key. After entering the key, the API tool can be run by pressing the Generate button.

6. Obtaining API Key: If you are using the tool for the first time, you need to acquire an API key by signing up through the API KEY link located beneath the area for inserting the key. Clicking the hyperlink will prompt you to sign up by creating a GitHub account. Simply follow the instructions provided on the respective webpage.

7. Generate button: In case of enetering API key Generate button is enabled. After pressing the button API is run and after receving output it will display in enhance image in Result tab.

Image View Area

The image view area is dedicated to displaying the selected image. Only one image can be displayed at a time. Users can navigate the image by clicking and holding the mouse, allowing movement in any direction within the view area. Zooming in and out can be achieved using either the mouse wheel or the keyboard shortcuts I for zooming in and O for zooming out. To adjust the image's brightness, utilize the brightness tab located on the right side of the image view. By dragging the horizontal line connected to a vertical base with a central triangle, users can modify the brightness. Two handlers are available: one at the top and the other at the bottom. Adjusting these handlers vertically changes the brightness of the image accordingly.

Toolbar

The toolbar consists of three buttons, each serving a specific function:

1. Mouse Mode Button: Users can choose between two mouse modes. The first mode allows for dragging the image within the image view area and zooming in and out using the mouse wheel. The second mode enables zooming in by creating a zoom square after clicking.

2. Zoom Factor Button: Clicking this button reveals a drop-down menu with various zoom factors. The first three options are fit, which adjusts the image to fit the view area. The remaining two options enable zooming in and out.

3. Save Button: Located on the right side of the top toolbar, the save button permits users to save the image from the view area to a selected folder.