How to edit and process images and photos on Kirin OS?

How to edit and process images and photos on Kirin OS?

Kirin operating system is a free operating system based on Linux independently developed by China. It supports multiple hardware platforms and provides rich features and tools. One of the important functions is the editing and processing of pictures and photos. The following will introduce how to edit and process images and photos on Kirin operating system, and provide corresponding code examples.

First, we need to install some image processing and editing tools. In the Kirin operating system, we can use GIMP (GNU Image Manipulation Program) to edit and process images. GIMP is a powerful, free and open source image processing software that can meet a variety of image processing needs.

To install GIMP, open the terminal and enter the following command:

sudo apt-get update
sudo apt-get install gimp

After the installation is complete, we can use GIMP for image editing and processing.

1. Open Image

In GIMP's menu bar, select "File" -> "Open" and then select the image file you want to edit. GIMP supports a variety of image formats, including JPG, PNG, BMP, etc.

2. Image Adjustments

In GIMP’s “Toolbox” you can find various tools and options to adjust images. For example, you can use the "Brightness/Contrast" tool to adjust the brightness and contrast of an image, and the "Hue/Saturation" tool to adjust the hue and saturation of an image, etc.

The following is a simple code example that demonstrates how to use GIMP to adjust the brightness and contrast of an image:

import os
import subprocess

def adjust_image_brightness_contrast(image_path, brightness, contrast):
    try:
        command = f"gimp -i -b '(let* ((image (car (gimp-file-load RUN-NONINTERACTIVE "{image_path}" "{image_path}"))) (drawable (car (gimp-image-get-active-layer image)))) (gimp-image-undo-group-start image) (gimp-levels-stretch drawable 0 {brightness} {contrast}) (gimp-image-undo-group-end image) (gimp-file-save RUN-NONINTERACTIVE image drawable "{image_path}" "{image_path}") (gimp-image-delete image))' -b '(gimp-quit 0)'"
        subprocess.run(command, shell=True, check=True)
        return True
    except subprocess.CalledProcessError:
        return False

image_path = "path/to/your/image.jpg"
brightness = 50
contrast = 25

if adjust_image_brightness_contrast(image_path, brightness, contrast):
    print("Image adjusted successfully.")
else:
    print("Failed to adjust image.")

This code uses the command line interface of GIMP. First open the specified image file, Then the gimp-levels-stretch function is called to adjust the brightness and contrast, and finally the image is saved and closed. You can change the brightness and contrast values ​​as needed.

3. Image cropping and rotation

GIMP also provides functions for cropping and rotating images. You can use the Crop tool to select an area of ​​interest in the image and crop it. Use the Rotate tool to rotate an image by a specified angle.

The following is a simple code example that demonstrates how to use GIMP to crop and rotate images:

import subprocess

def crop_image(image_path, x, y, width, height):
    try:
        command = f"gimp -i -b '(let* ((image (car (gimp-file-load RUN-NONINTERACTIVE "{image_path}" "{image_path}"))) (drawable (car (gimp-image-get-active-layer image)))) (gimp-image-undo-group-start image) (gimp-image-crop image {width} {height} {x} {y}) (gimp-image-undo-group-end image) (gimp-file-save RUN-NONINTERACTIVE image drawable "{image_path}" "{image_path}") (gimp-image-delete image))' -b '(gimp-quit 0)'"
        subprocess.run(command, shell=True, check=True)
        return True
    except subprocess.CalledProcessError:
        return False

def rotate_image(image_path, angle):
    try:
        command = f"gimp -i -b '(let* ((image (car (gimp-file-load RUN-NONINTERACTIVE "{image_path}" "{image_path}"))) (drawable (car (gimp-image-get-active-layer image)))) (gimp-image-undo-group-start image) (gimp-image-rotate image {angle}) (gimp-image-undo-group-end image) (gimp-file-save RUN-NONINTERACTIVE image drawable "{image_path}" "{image_path}") (gimp-image-delete image))' -b '(gimp-quit 0)'"
        subprocess.run(command, shell=True, check=True)
        return True
    except subprocess.CalledProcessError:
        return False

image_path = "path/to/your/image.jpg"
x = 100
y = 100
width = 200
height = 200
angle = 45

if crop_image(image_path, x, y, width, height):
    print("Image cropped successfully.")
else:
    print("Failed to crop image.")

if rotate_image(image_path, angle):
    print("Image rotated successfully.")
else:
    print("Failed to rotate image.")

This code uses the command line interface of GIMP, first opens the specified image file, and then calls The gimp-image-crop function is used for cropping, the gimp-image-rotate function is called for rotation, and finally the image is saved and closed. You can change the coordinates and dimensions of the crop and the angle of rotation as needed.

Through the above examples, you have learned how to use GIMP to edit and process images and photos on Kirin operating system. Whether it is adjusting brightness and contrast, cropping or rotating, it can all be achieved through simple code. From now on, you can edit and process your images and photos as you like!

The above is the detailed content of How to edit and process images and photos on Kirin OS?. For more information, please follow other related articles on the PHP Chinese website!