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Image Tools / Local studio

Image Hue Rotator

Rotate still-image colour hues through a bounded W3C-style matrix, preview locally, preserve alpha, and export a separate derivative.

Runs locallyNo image upload to Nirmion

Step 1 / Source

Choose one image

JPEG · PNG · WebP · 20 MB

Drop your image here

Or browse for a JPEG, PNG, or WebP image that you own or are authorised to edit.

One file · up to 20 MB · maximum 50 megapixels

Step 2 / Output

Image Hue Rotator controls

Choose -180° to 180°; 0° preserves decoded colours while positive and negative angles rotate them in opposite directions. Processing stays in this browser tab.

Create the hue-rotated imageThe source is not overwritten. Export creates a separate hue-rotated image.
Keep this page open until the download begins.
01No server upload

The selected image is decoded and re-encoded inside this browser tab.

02Working copy released

After download, the preview URL, decoded bitmap, canvas, and selected source reference are cleared.

03Your download remains

Nirmion cannot remove the finished file from your device or browser download history.

Workflow guide

Use image hue rotator with a reversible review path

A hue-rotation colour matrix mixes red, green, and blue according to the selected angle while leaving alpha unchanged. Compare the derivative with the untouched source before using it downstream.
A

What you need

Choose one authorised JPEG, PNG, or WebP still image up to 20 MB and 12 million decoded pixels. Animated frames are not processed.

B

Social-ready choices

Test alternate campaign colour families without changing image dimensions, then review brand colours and skin tones carefully.

C

What you receive

Download a separate hue-rotated image; the original file on your device remains unchanged.

Decision guide

What image hue rotator changes

A hue-rotation colour matrix mixes red, green, and blue according to the selected angle while leaving alpha unchanged.

Hue rotation is a mathematical RGB transformation, not selective recolouring, white balance, profile conversion, or brand-colour matching. Browser-local processing avoids a Nirmion file upload, but it cannot remove copies stored elsewhere.

W3C Filter Effects Module Level 1

Useful checks for image hue rotator

  1. Test alternate campaign colour families without changing image dimensions, then review brand colours and skin tones carefully.
  2. Create a review derivative while retaining the original for correction, comparison, or a different export.
  3. Test the operation on representative shadows, midtones, highlights, edges, text, and transparent areas.

Good to know

Important image boundaries

Why might a PNG not become smaller?
PNG is lossless and browsers do not expose a quality control for it. Choose WebP or JPEG when reducing file size matters more than exact lossless pixels.
Are animated images supported?
No. The workspace accepts still JPEG, PNG, and WebP files. Re-encoding an animated source would otherwise keep only one frame.
What does clearing the file mean?
Because processing is local, there is no Nirmion server copy to delete. The tab releases its working references after success; your downloaded output remains on your device.

Questions answered

Frequently asked questions

Does Image Hue Rotator upload my image?

No. For supported JPEG, PNG, and WebP inputs, decoding, pixel transformation, canvas rendering, and export run in your current browser tab. Nirmion does not send the selected image to its API for this workflow. The output is a new derivative, while the original file on your device remains unchanged and should be retained for comparison or later editing.

How does Image Hue Rotator change pixels?

A hue-rotation colour matrix mixes red, green, and blue according to the selected angle while leaving alpha unchanged. Existing alpha values are preserved. The operation does not infer subjects, recover clipped detail, calibrate a display, or develop raw camera data. Inspect fine edges, gradients, text, skin tones, and transparent pixels in the exported file before relying on the result.

What are the practical limits of Image Hue Rotator?

Hue rotation is a mathematical RGB transformation, not selective recolouring, white balance, profile conversion, or brand-colour matching. The workspace accepts one supported still image up to 20 MB and caps this pixel-intensive operation at 12 million decoded pixels for predictable browser memory use. Output depends on browser decoding and encoding support. Animation, raw development, ICC calibration, layer editing, and batch processing are outside this tool's verified scope.