Duotone Photo Portrait

Photography · Duotone · Portrait

Download examples
Portrait on green with flowers·Nano Banana Pro
Square crop·Nano Banana Pro
Two tone close up·Nano Banana Pro
Wide poster crop·Seedream 4.5

Recipe

The examples above were generated with Nano Banana Pro and Seedream 4.5. The recipes below are written for GPT Image and Flux, so treat the settings as a starting point rather than the exact run.

A description in plain sentences. This is the version to start with, and it works on any current image model. Settings below are the ones we used on GPT Image; treat them as a starting point.

The recipe is the style, not the picture. Put your own subject in and the highlighted part of the prompt changes.

Prompt

A duotone portrait: a photograph of a man in a bucket hat reduced to two inks, deep blue and cream, with the midtones crushed so the face reads as bold flat shapes. Set against a solid grass green ground with a scattering of simple flat pink flower shapes placed around him. High contrast, no soft gradients, print like flatness. Composed as a poster with the head slightly off centre.

The prompt gets you close. Feed one of the examples in as a style reference for the rest. Download the images

Use the examples as a reference

Download the examples

Send the example as an input image to the images.edits endpoint alongside the prompt, or attach it in ChatGPT. It follows composition closely, so describe your subject firmly or it will copy the example.

Settings on GPT Image

Size
1024 x 1280
Quality
High
Background
Opaque
Output
PNG

Tips

  • 1Crushed midtones. A gentle duotone just looks like a colour filter.
  • 2One flat saturated ground colour that clashes slightly with the ink.
  • 3Simple graphic shapes around the subject complete the poster feel.

Things to try

Red and black

the harshest version of the same treatment

Three colour

a third ink used only on one element

Full figure

a standing figure with more ground showing

Halftone

the photo reduced to coarse dots rather than flat shapes

Torn poster

the print reproduced as a weathered street poster

Similar Styles