Make a Black and White Image for Your Prophecy Panel
Upload any image, adjust the threshold to keep the details you want, then invert colors if needed. Export a clean black and white PNG and use it as the starting image in the Deltarune Prophecy Maker.
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Frequently Asked Questions
What is a monochrome image?
A monochrome image consists of only two colors - typically black and white. Each pixel in the image is converted to either black or white based on its brightness and the threshold value you set.
How does the threshold work?
The threshold (0-255) determines which pixels become black or white. Pixels brighter than the threshold become white, while darker pixels become black. Adjust it to find the best balance for your image.
What does the invert option do?
The invert option switches black and white in your image. This is useful when you want to reverse the colors of your monochrome result.
What image formats are supported?
The converter supports common image formats including PNG, JPEG, GIF (first frame only), and BMP. For best results, use high-contrast images with clear details.
Why should I use monochrome images?
Monochrome images are perfect for pixel art, retro-style graphics, logos, and creating dramatic visual effects. They're also ideal for the Deltarune Prophecy Maker's art style.
How do I make a Deltarune monochrome image?
Upload your source image, move the threshold until its main shapes are clear, and use invert colors if the light and dark areas are backwards. Export the PNG, then upload it to the Deltarune Prophecy Maker to build a custom prophecy panel.
Can I adjust the image after conversion?
Yes! You can freely adjust the threshold and invert colors even after uploading your image. Experiment with these settings to achieve the perfect look for your prophecy panels.
Three thresholds, one original image
Threshold controls which source pixels become white. These examples use an original lantern drawing with a dark background, a gray frame and a brighter window. They illustrate the brightness cutoff, rather than an automatic background-removal tool.
Threshold 80Threshold 127Threshold 200
At 80, the gray frame joins the white window. At 127, the frame becomes black and only the brighter parts remain. At 200, the handle and base disappear too. If a detail vanishes, lower the threshold or thicken it in your source. If a large rectangle dominates the result, inspect the background and try Invert Colors.
A grayscale photo can keep hundreds of brightness levels; this binary conversion keeps black and white. It cannot recognize a face or decide which objects should stay. Choose a simple source, keep the subject white for the prophecy effect, and judge the whole outline at the size you will actually use.
