What is Colorization?
Colorization is the process of converting grayscale images into color and estimating color information where it is missing. Technically, this is a challenging task of assigning RGB (Red, Green, Blue) color values to each pixel based on the intensity of a grayscale image.
Over the last two decades, many colorization methods have been developed, from algorithmically simple (but time-consuming) to more complex, automated methods. Automatic conversion has become an active area of development that uses machine learning and deep learning.
Why Should I Colorize Images?
Black and white images may have strong artistic value, but color is an essential part of visual representation. Color images can trigger a stronger emotional response. People can relate to the image in a way they could not before.
One of the main uses of colorization is bringing historical black and white images back to life. For old family photos, great results can be achieved by using image colorization.
Using Photoshop to Colorize Images
The most commonly used tool for colorizing black and white images has long been Adobe Photoshop . It offers many tools to add color to objects in a photo, enhance the image, and make it look like it was originally taken in color.
However, the image is colored based on personal perception of how the colored version should look. When done manually in Photoshop, colorizing one image can take up to a month. In addition, extensive research may be required to get it right.
In contrast, a machine learning algorithm can learn, with a certain degree of accuracy, how to map black and white pixels to RGB pixels and automate the colorization process. Our online tool uses AI-based machine learning algorithms and lets users colorize their black and white photos quickly and easily online.
How does this work?
Colorizing black and white images with deep learning is one of the notable applications of neural networks . Neural networks handle incomplete data well, which is why color can be added successfully even if the photos are not in perfect condition.
Progress in machine learning increases significantly when you replace hand-coding with the system learning on its own. To achieve realistic image colorization, specific algorithms and trained models are used to replace a hand-coded loss function with a network that learns everything it needs.
Thanks to AI technology, our image colorization tool can recognize the scene and its elements and, using the appropriate database, apply colors to these elements and compose the scene. Since black and white photos do not contain any color information, this tool uses machine learning to estimate the tones in an image.
How To Automatically Colorize Images Online?
Powered by advanced AI technology, our image colorizer can automatically colorize black and white photos by analyzing the objects in a photo. No extra manual steps are needed.
Follow the steps below and get your image colorized in just a few seconds.
- Visit Img2Go.com - Colorize Images tool.
- Click "Choose File" to select an image file to upload. You can also drag and drop the PDF file. Uploading a file from the Internet (Enter URL) or from cloud storage (Google Drive, Dropbox) is also possible.
- Choose any optional settings to improve the final result.
- Click the "Download" button to save the image.
Optional settings explained:
- Target Format: PNG, TIFF (select one of these two formats).
- Choose an AI training model - Depending on your image content, selecting a training model can improve the result. Choose between "Nature and People" option (algorithms here were trained mostly on nature photos such as forests, lakes, landscapes, and human portraits). Or choose the "Generic" option (algorithms used here were trained on everything else, e.g. a car, a city view, etc.).
- Set render factor By increasing this value, you can improve the quality of the resulting image.
Conclusion
Adding color to black and white images is not a difficult task, especially now that you have read this article and learned how to do it automatically online and get the best results for free. Dig through your family photo albums and find your black and white photos. Turn them from monochrome to color , regardless of any flaws in the image. You will be pleasantly surprised by the results!
