Restoring and colorizing old photos with Nano Banana is simple yet highly effective. Using its advanced AI-powered image editing capabilities, Nano Banana can repair damaged, scratched, or faded photos and bring them to life with natural, realistic colors. This makes your vintage memories look fresh, vivid, and professionally restored, even without any traditional photo editing skills.
By the way, if you’d like to use Nano Banana with Gemini and other top AI models at an extremely lower price, Global GPT offers an integrated all-in-one experience.
What Is Nano Banana and Its AI Photo Restoration Feature
Nano Banana is Google’s family of conversational image models. Google’s image-generation documentation distinguishes Nano Banana 2, Nano Banana Pro, and the original Gemini 2.5 Flash Image model. For an iterative restoration workflow on GlobalGPT, start with Nano Banana 2 or Nano Banana Pro and keep the same source photo throughout.
Users can repair aged or damaged photos while preserving fine details and adding realistic colors. Whether it’s a scratched black-and-white photo or a faded family portrait, Nano Banana can restore it to a lifelike state with just a few simple commands.
Before you upload the scan
Use the largest clean scan you have. Photograph a print straight-on in even light if scanning is not possible; glare and a tilted camera can hide more detail than the model can recover. Keep a separate untouched copy. Decide whether the result should remain black and white, and identify the face, handwritten note, badge, or garment detail that must not change.
Step-by-Step Guide to Restoring and Colorizing Old Photos
1 Upload Your Old Photo
Choose a damaged or black-and-white photo that you want to restore.
2 Enter a Detailed Prompt
Example: “Repair this old photo, remove scratches, and colorize it naturally.”
3 Generate the Restored Image
Review the repaired image before accepting it. Nano Banana can reconstruct plausible details and suggest colors, but a convincing result does not prove that missing features or historical colors are accurate.
4 Refine as Needed
Use additional prompts to adjust color tones, brightness, or specific details for a perfect final result.
Three restoration prompts you can adapt
Use one prompt for the dominant problem. Combining damage repair, colorization, a new background, and a different expression makes it harder to tell which edit caused a face to change.
Remove scratches while preserving the original portrait
Repair the scratches, dust, and small creases in this photograph. Preserve the same face shape, expression, age, hairstyle, clothing, framing, and background. Keep the photograph black and white. Do not beautify the face, smooth away skin texture, invent jewelry, or replace damaged text with new words.
Correct fading without inventing a new color scheme
Correct the faded and yellowed appearance of this photo. Balance exposure and restore restrained, natural contrast. Preserve recognizable facial details and clothing patterns. Where the original color is ambiguous, keep the adjustment conservative rather than adding highly saturated colors.
Improve a soft scan without plastic skin
Make this soft scanned photograph easier to read with gentle sharpening and noise reduction. Preserve natural grain, face proportions, hairline, and age. Keep the background and composition unchanged. Do not invent fine text or reshape the eyes, mouth, or nose.
After the first result, request one correction at a time: “Keep everything else unchanged; restore the original hairline.” The reference-image consistency workflow explains why the same source image matters when identity must stay recognizable.
Why Nano Banana Is Ideal for Photo Restoration
- Professional Results Without Expertise – AI handles scratches, fading, and colorization automatically.
- High Detail Preservation – Facial features and textures remain clear and accurate.
- Intuitive Interaction – Step-by-step prompts allow incremental adjustments, even for beginners.
- Time-Saving – Restores photos in seconds compared to traditional manual editing.
There are even more interesting ways to use Nano Banana, such as AI face swapping, outfit changes, cosplay ，3D AI Figurine，and altering a character’s pose.It can even be used to create product design images.
What to check at full size
| Area | Keep the result when | Try another edit when |
|---|---|---|
| Face | The expression, age and face proportions remain recognizable. | Eyes, teeth, hairline or face shape change. |
| Text and small objects | Original marks stay legible or honestly unresolved. | New letters, jewelry or objects appear. |
| Texture | Grain and fine texture remain believable. | Skin looks waxy or edges develop halos. |
| Color | The treatment is restrained and consistent with any references. | Colors are vivid but contradict known clothing or surroundings. |
Compare the original and output at the same magnification. An attractive thumbnail can hide a changed eye or invented lettering. For a family archive, keep the scan and the edited version together and label the colorized copy separately.
Creative Applications of Nano Banana in Photo Restoration
- Family Memories: Restore old family portraits with realistic skin tones and details.
- Historical Photos: Bring historical black-and-white images to life for presentations or publications.
- Personal Projects: Colorize personal keepsakes or vintage photography collections.
Limitations to Keep in Mind
- Extremely damaged photos may require multiple iterations to fully restore.
- AI colorization may not always perfectly match historical accuracy for very old photos.
- Large batches of photos may take longer to process.
Using Nano Banana, restoring and colorizing old photos has never been easier. Its AI-driven technology allows anyone to bring vintage memories back to life with stunning realism, making it a must-have tool for photo enthusiasts, historians, and creative professionals alike.
Frequently Asked Questions
Can Nano Banana restore damaged old photos?
It can repair visible scratches, fading, and some scan defects through image editing. Results vary with the source; compare faces, small objects, and text before accepting the repair.
Which Nano Banana model should I choose?
Nano Banana 2 and Nano Banana Pro are available in the checked GlobalGPT image model list. Start with one model and the original scan, then compare a second model only if the first changes important details.
How do I stop the restored face from changing?
Use the original image as the reference, ask to preserve age and facial proportions, and request damage repair without beautification. If the face changes, return to the original and narrow the edit.
Can I restore a black-and-white photo without colorizing it?
Yes. State that the result must stay black and white, with its original contrast and grain. Colorization is a separate creative choice and is not required to repair scratches or fading.
Does AI recover the true historical colors?
No. Without reliable color references, the model produces plausible colors rather than verified historical colors. Keep a monochrome repair when archival accuracy matters.
Can I use GlobalGPT for the restoration workflow?
Yes. Open GlobalGPT Image, choose Nano Banana 2 or Nano Banana Pro, and provide the photo with a focused editing prompt. Review the current generation cost before running the edit.
