Question 1

What does this tool do?

Accepted Answer

Tonal Logic analyzes your photo to help you decide between color and black and white. It scores your image's color, contrast, and light to give you an artistic recommendation, perfect for photographers and creators making editing and publishing decisions.

Question 2

How do I use the comparison tool?

Accepted Answer

Getting started is simple. Just upload your color photo, and the tool will instantly display it. Use the button below the image to switch between the color and black and white versions, making it easy to compare the full composition and see the changes in detail. The tool works on desktop and mobile.

Question 3

How does the analysis work?

Accepted Answer

The analysis is performed entirely in your browser using the five principles of the Tonal Logic Framework: Hue (color variety), Saturation (color intensity), Light (brightness), Contrast, and Zone (tonal range). Based on how your image scores in these areas, the tool generates a recommendation and artistic interpretation to get you thinking.

Question 4

What kind of images work best?

Accepted Answer

The tool works on any JPG or PNG image up to a maximum 25 MB. It is most helpful for the kind of photos that give photographers the most doubt: images where the colors are present but not necessarily the main subject, or scenes where strong textures and forms compete with the color palette. This tool helps clarify whether the color is adding to the story or distracting from it. Please note that for a consistent layout, the comparison viewer displays images in a 4:3 aspect ratio, so the edges of portrait or panoramic photos may be visually cropped.

Question 5

Are my images private?

Accepted Answer

Absolutely. Your images are never uploaded to a server. All processing happens locally on your computer. We do not see, store, or have any access to the photos you analyze. You can read more in our Privacy Policy.

Tonal Logic

Color or Black & White?

Frequently Asked Questions