In various cases, while processing and editing images, the pixel values of an image are modified. This is done for several reasons, for example, for color correction of the images, to enhance the image by modifying the brightness, contrast, and other parameters, and so on. This article aims to show you how you can modify the pixel colors of an image in Python. This could be useful for you to programmatically improve the appearance of the images.
Python Library to Modify Pixel Colors
Aspose.Imaging for Python is a powerful image processing library that offers a wide range of features to manipulate images. Using the library, you can easily access and modify the pixel values of an image in your Python application. To use the library, you can either download or install it using the following command.
> pip install aspose-imaging-python-net
Modify Pixel Colors of an Image in Python
To modify the pixel colors, we first need to retrieve the pixel values from the image. Once we have the pixel values, we can update them as we need. The following are the steps to get the pixel colors of an image and modify them in Python.
- First, load the image using Image.load() method.
- Then, get pixel values in an array using image.load_pixels() method.
- After that, update the pixel color values in the array.
- Once done, save the new pixel values using image.save_pixels() method.
- Finally, save the updated image using Image.save() method.
The following code sample shows how to update the pixel colors in an image in Python.
Free Online Image Editor
You can use our free web-based image editing tool to manipulate your images online. This image editor is powered by Aspose.Imaging for Python and doesn’t require you to create an account.
Change Image Pixel Values for Free
You can get a free temporary license and change the pixel colors of your images without any evaluation limitations.
Conclusion
In this post, we have shown how to modify the pixel color values in an image using Python. For demonstration, we have modified the pixel colors of a PNG image. In addition, we have provided you with a free image editor app that you can use to edit your images online. This is a free image editing tool that can be accessed without signing up.
If you want to learn more about our Python image processing library, visit the documentation. In case you would have any queries, you can write to us on our forum.