Image Hue and Saturation Adjuster
Rotate local image hue through 0–360° and set saturation from 0–300%; apply Canvas filters and download the resulting PNG.
About this image hue and saturation adjuster
Rotate local image hue through 0–360° and set saturation from 0–300%; apply Canvas filters and download the resulting PNG Processes media assets directly in the browser using HTML5 Canvas and WebAssembly decoders, ensuring zero file uploads.
Image processing & canvas pipeline
Applies 2D image convolution filters, pixelation, and EXIF metadata sanitization directly to raw RGBA ImageData buffers. Privacy tools apply Gaussian blur kernels or block pixelation to obscure sensitive areas (faces, license plates, credentials). EXIF metadata scrubbing parses TIFF/JPEG binary application segments (APP1, markers 0xFFE1), stripping GPS latitude/longitude, camera serial numbers, device models, and timestamps while preserving image pixel data intact. Generates ISO/IEC 18004 QR codes.
Worked image transformation example
Scenario: Rotate the hue of a decodable 12×9 test PNG.
Sample input:
Processing: Canvas applies hue-rotate(180deg) saturate(1) before drawing.
Illustrative output:
Resolution, dimension & memory limits
Operational constraints and validation boundaries: File size must be strictly below 30 MB (30,000,000 bytes). Hue and saturation controls use integer degree/percent steps. Output retains decoded dimensions and exports PNG; decoding and memory depend on the browser/device. CSS hue-rotate uses a color matrix, not HSL hue-wheel conversion, so it need not preserve perceived lightness or saturation. Filters can clip channels; no color-managed proof, selective replacement, animation export or metadata preservation.
Image Hue and Saturation Adjuster image operations execute in client memory via HTML5 Canvas and browser decoders. Inspect output previews before replacing source assets.
In-memory image processing boundary
File buffers and document assets in Image Hue and Saturation Adjuster are processed in-memory via local browser APIs with zero file uploads to CZOA servers.
Image format & W3C Canvas standards
W3C Canvas 2D context specifications and standard image container formats:
- WHATWG Canvas 2D
- CSS Filter Effects
Image Hue and Saturation Adjuster verification · Audit standards
How to use it
- Enter, paste, or select your input data into the Image Hue and Saturation Adjuster workspace controls.
Frequently asked questions
How do 0–360° hue and percentage saturation work?+
Operational requirements for "How do 0–360° hue and percentage saturation work?" are verified in local memory during execution of Image Hue and Saturation Adjuster.
What controls does Image Hue & Saturation Adjuster provide?+
Choose a local browser-decodable image smaller than 30 MB. Set hue from 0–360° and saturation from 0–300%, then process and download the PNG. The displayed values use degrees and percent. Angles above 180° are mapped to the equivalent negative turn before the existing Canvas hue-rotate filter, followed by saturate. Thus 270° uses −90° and 360° uses 0°. Saturation 100% preserves saturation; 0% removes color; 300% increases it. Example: hue 270° with saturation 150% applies hue-rotate(-90deg) saturate(1.5). Changing controls requires processing again.
What limits apply to hue and saturation adjustment?+
File size must be strictly below 30 MB (30,000,000 bytes).
What result and limits should I expect when using Image Hue & Saturation Adjuster?+
Canvas hue-rotate() and saturate() process the selected decoded image locally and return a PNG data URL. This tool does not verify or control unrelated site requests, browser extensions, permissions, or managed-device software.