CLAHE Video

Often followed by + Clarity + Saturation

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Settings are written to the URL as you change them. Nothing differs from the defaults yet.

Pull detail out of footage where it is present but buried: dark corners, hazy distances, backlit subjects. CLAHE equalizes brightness locally, so a dark foreground is not held down by a bright sky elsewhere in the frame.

Tiles and clip limit

Tile Grid sets how many tiles the frame is split into along each side. At 1 the whole frame shares one histogram; at 8 each tile covers an eighth of each side. Clip Limit caps the stretch; low values stay natural, high values look dramatic and bring noise up. Chroma restores color after equalization.

Per-frame equalization

Each frame is equalized on its own. Steady shots stay consistent; shots with large moving bright or dark objects shift slightly as they cross tiles. For dark noisy footage, denoise first with the video denoiser.

Frequently Asked Questions

What does CLAHE do?

It splits each frame into tiles, equalizes the brightness histogram of each tile, and blends between tiles. Clip Limit caps how much any tone can be stretched, which stops noise from being amplified the way plain equalization does.

Does the result change between frames?

Yes, slightly. Each frame's tiles are equalized from that frame's own histograms, so when a bright object moves into a tile, the tile's contrast adjusts. Lower Strength or raise the tile count if a clip flickers.

What is it used for?

Dark security and dashcam footage, hazy drone video, microscopy, and any clip where detail is present but compressed into a narrow brightness range.

What happens to the audio?

It is copied into the export unchanged when the container can hold its codec, and re-encoded when it cannot. A note under the export button says which happened.

Explore Our Tools

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Adaptive Histogram Equalization (CLAHE)

Equalize an image tile by tile with a clip limit, so flat or hazy detail comes back without the blown noise that global equalization produces. Set the tile grid, clip limit, and chroma recovery.

Dehaze Video

Remove atmospheric haze from a video with a dark-channel estimate, then set haze depth, contrast, and warmth. Exports MP4 or WebM with the original soundtrack.

Colored Pencil Video Effect

Turn a video into a moving colored pencil drawing: dark strokes along edges, light paper where the frame is flat, and angled pencil texture. Set detail, color retention, paper texture, and stroke angle. Exports MP4 or WebM with the original soundtrack.

Color Replace Video

Replace one color in a video with another, such as a blue shirt turned red, while keeping the original shading. Set source color, replacement color, tolerance, and strength. Exports MP4 or WebM with the original soundtrack.

Pop Art Video Effect

Reduce every frame of a video to four flat pop art colors with halftone dots and bold outlines. Set exposure, contrast, halftone dot size, and outline strength; the dots scale with the output. Exports MP4 or WebM with the original soundtrack.

Sepia Video Filter

Tone every frame of a video in warm sepia, from a light vintage tint to a full brown print. Set sepia strength, ink tone from gold to copper, and tint density. Exports MP4 or WebM with the original soundtrack.

Shadows and Highlights Video

Lift dark shadows and recover bright highlights in a video without changing the overall exposure, with midtone contrast and mix controls. Exports MP4 or WebM with the original soundtrack.

Video Denoiser

Reduce grain and sensor noise in a video by averaging each frame with the three before it where nothing moved, and smoothing only where something did. Set noise reduction, noise scale, edge protection, and color noise. Exports MP4 or WebM with the original soundtrack.

Watercolor Video Effect

Paint every frame of a video in watercolor: flat washes of color with sharp edges, raised saturation, and a fixed paper texture. Set brush scale, vibrance, and paper texture. Exports MP4 or WebM with the original soundtrack.

Black Mist Video Filter

Add the look of a black pro-mist diffusion filter to a video: light sources bloom into a soft veil and blacks lift slightly. Set diffusion strength, veil spread, black lift, highlight bias, and warmth. Exports MP4 or WebM with the original soundtrack.

Bleach Bypass Video Effect

Give a video the bleach bypass film look: desaturated color with a silver layer of hard contrast, as used on war films and gritty thrillers. Set bypass strength, silver density, color retention, and contrast. Exports MP4 or WebM with the original soundtrack.

Blueprint Video Effect

Turn every frame of a video into a blueprint drawing: white edge lines on drafting blue with a measured grid. Set edge intensity, blue hue, and grid opacity. Exports MP4 or WebM with the original soundtrack.