Add Posterize Effect to Reference Photos
Posterize image online free tool converts photos into black and white and displays a limited number of flat gray value levels. Levels can be adjusted with an interactive slider. Download result in original resolution. No AI, no watermark, no limits.
When drawing from reference photos, artists often posterize images to break values into clear levels. Posterizing helps you see how light and shadow relate to each other, define the forms of the drawing subject, and clearly distinguish highlights from the deepest shadows. This makes it much easier to choose the right pencils for shading and to build realistic values in pencil drawings.
Our Posterize Image Online Free Tool converts your uploaded photo to black and white and lets you choose the number of posterize levels. With 2 levels, your image becomes pure black and white. Adding more levels introduces gray values between black and white. The more levels you choose, the more value detail you can use when drawing and shading from your reference photo.
- Upload your photo.
- Choose the number of posterize levels.
- Click or tap the download button to save your posterized image, which is downloaded in the same size as your uploaded photo.
Tip: The pencil artist Jasmina Susak usually chooses 7 posterize levels, as it provides a good balance between clear value separation and enough detail for realistic drawing.
Bonus Tip: Posterize your drawing too. Set the scale to the same value as your reference photo. This will help you see whether your values match those in the image you are drawing from.
