What is the standard gamma correction value?

The industry standard for Windows and modern Mac displays is Gamma 2.2. Our tool defaults to this standard but allows adjustment from 0.4 to 2.5.

How to fix a dark photo without noise?

Use our Gamma Tool set to 1.4 or 1.6. Unlike 'Brightness' which washes out the image, Gamma targets mid-tones, preserving the black point and reducing visible noise artifacts.

Is this safe for sensitive documents?

Yes. KyaToolsJi processes images in a secure, ephemeral environment. Your file is deleted instantly after processing. No copies are kept.

Gamma vs Exposure: Which is better?

Exposure affects the entire light spectrum linearly. Gamma is superior for correcting just the shadows or mid-tones without blowing out the highlights (white areas).

Gamma Correct Image Online
Precision Lightning Fix

The #1 Professional Tool to adjust image gamma curves. Restore deep blacks, recover lost shadow details, and calibrate photos for web & print. Free, Secure, and Lossless.

✨ Linear to sRGB: Perfect Color Mapping
🛠️ Gamma 2.2: Standard Calibration
🚀 Instant: No Upload Wait Time

Upload Image to Correct

Drag & Drop (PNG, JPG, WEBP) - Max 10MB

image.jpg

| Change Image

Gamma Level 1.0

0.4 (Deep) 2.5 (Bright)

⚙️ Advanced Settings

Shadow Protection Output Format:

How to Gamma Correct Images in 3 Steps

Upload Photo

Select any JPG, PNG, or WEBP image. Our engine accepts files up to 10MB instantly.

Adjust Curve

Move the slider. Values > 1.0 brighten shadows safely. Values < 1.0 fix overexposure.

Export

Download your professionally color-graded image in your preferred high-quality format.

Why is Gamma Correction Better than Brightness?

Most people resort to a simple 'Brightness' filter when an image is dark. This is a mistake. Brightness adds white linearly to every pixel, turning your rich blacks into a foggy grey.

Gamma Correction (Power Law Transform) is smarter. It applies a non-linear curve that boosts the mid-tones while pinning the black and white points. This means your shadows get brighter, but your blacks stay true black.

2.2 Standard sRGB Gamma

The "Gold Standard" for Web

Perfect for Monitor Calibration

Did you know? Different operating systems utilize different gamma standards. While Mac (pre-2009) used 1.8, the modern web standard (sRGB) is 2.2.

If you are a web designer or photographer, ensuring your images have a gamma value of roughly 2.2 ensures they look consistent on iPhones, Androids, and Windows PCs alike. Our tool is the quickest way to normalize these assets.

✅ Recovers Shadow Detail
✅ Preserves Contrast
✅ Standardizes Colors
✅ Fixes "Washed Out" Scans

KyaToolsJi vs. Basic Editors

Feature	KyaToolsJi Gamma	Standard Brightness
Black Point Preservation	✔ Yes (Rich Blacks)	✘ No (Grey Fog)
Highlight Protection	✔ Yes	✘ No (Clipping)
Processing Bit-Depth	✔ High Precision	✘ Standard
Output Control	✔ PNG/JPG/WEBP	✘ JPG Only

Expert FAQs

What is the formula for Gamma Correction?

The formula is V_out = V_in ^ (1 / Gamma). This exponential relationship is why gamma correction is so effective at modelling human vision, which is also non-linear.

How do I fix a photo that is too dark?

Upload it to KyaToolsJi and set the Gamma Slider to around 1.4 to 1.6. This specific range brightens the image significantly without causing the colors to look unnatural or washed out.

Can I batch process images?

Currently, we prioritize single-image precision to ensure perfect histogram mapping. Batch processing features are in development for the Pro version.

Does this work on RAW files?

Browsers cannot natively render RAW files. We recommend converting your RAW photo to a high-quality PNG first, then using our Gamma Tool for the final tonal polish.

Is there a file size limit?

We support optimized processing for images up to 10MB, which covers 99% of web and print graphics needs.