Introduction

Adjust color, tone, sharpness, and apply filters to any image with e_ effect tokens.

Effects adjust the color, tone, sharpness, and finish of an image at delivery time. Every effect is a token that starts with e_ and goes in the transform segment of a delivery URL, and you can chain several in one comma-separated segment.

Effects apply to images. All effect tokens use the e_ prefix, for example e_brightness:20 or e_grayscale.

You can use effects to:

• Correct exposure, contrast, and color on uploaded photos.
• Match a house look across a catalog without re-editing source files.
• Apply artistic filters such as grayscale, fade, or vignette.
• Sharpen images after resizing so detail lands at delivery size.

Tonal adjustments

Control the balance of light and dark.

Effect	Token	Range	What it does
Brightness	e_brightness	-100 to 100	Lightens or darkens the whole frame
Contrast	e_contrast	-100 to 100	Gap between light and dark areas
Exposure	e_exposure	-100 to 100	Camera-style exposure shift
Highlights	e_highlights	-100 to 100	Adjusts only the brightest areas
Shadows	e_shadows	-100 to 100	Adjusts only the darkest areas
Gamma	e_gamma	-50 to 150	Adjusts mid-tone brightness

Original

https://assets.autorender.io/LOKVTtKVGb/doc1/porsche.jpg

Brightness (+20)

https://assets.autorender.io/LOKVTtKVGb/e_brightness:20/doc1/porsche.jpg

Contrast (+30)

https://assets.autorender.io/LOKVTtKVGb/e_contrast:30/doc1/porsche.jpg

Shadows (+40)

https://assets.autorender.io/LOKVTtKVGb/e_shadows:40/doc1/porsche.jpg

Color enhancements

Adjust vibrancy, temperature, and tint.

Effect	Token	Range	What it does
Saturation	e_saturation	-100 to 100	Intensity of colors
Hue	e_hue	-180 to 180	Rotates colors on the color wheel
Temperature	e_temperature	-100 to 100	Cool (blue) to warm (orange)
Tint	e_tint	-100 to 100	Green-to-magenta balance

Original

Vibrant (+40)

https://assets.autorender.io/LOKVTtKVGb/e_saturation:40/doc1/porsche.jpg

Warmth (+30)

https://assets.autorender.io/LOKVTtKVGb/e_temperature:30/doc1/porsche.jpg

Sharpening and clarity

Enhance texture and define edges.

Effect	Token	Range	What it does
Sharpen	e_sharpen	1 to 2000	Basic edge sharpening
Unsharp mask	e_unsharp_mask	1 to 2000	Fine-grained detail enhancement
Structure	e_structure	0 to 100	Local contrast for texture detail

Original

Sharpen (+150)

https://assets.autorender.io/LOKVTtKVGb/e_sharpen:150/doc1/porsche.jpg

Structure (+50)

https://assets.autorender.io/LOKVTtKVGb/e_structure:50/doc1/porsche.jpg

Artistic filters

Apply a creative or stylized look.

Filter	Token	Range	What it does
Grayscale	e_grayscale	flag	Removes all color for a black-and-white result
Black & white	e_blackwhite	0 to 100	Threshold to pure black or white pixels; the value sets the threshold
Fade	e_fade	0 to 100	Vintage, washed-out appearance
Vignette	e_vignette	0 to 100	Darkens the edges of the image
Blur	e_blur	0.3 to 1000	Gaussian blur
Invert	e_invert	flag	Negative-image effect

Grayscale

https://assets.autorender.io/LOKVTtKVGb/e_grayscale/doc1/porsche.jpg

Vintage (Fade)

https://assets.autorender.io/LOKVTtKVGb/e_fade:60/doc1/porsche.jpg

Vignette

https://assets.autorender.io/LOKVTtKVGb/e_vignette:50/doc1/porsche.jpg

Auto enhancements

Let Autorender adjust the image for you.

• Auto enhance (e_auto_enhance) — normalization plus a mild brightness and saturation boost. Runs the same algorithm every time.
• Normalize (e_normalize) — stretches the dynamic range for stronger contrast.
• Improve (e_improve:indoor / e_improve:outdoor) — scene-specific modulation. A mode is required; e_improve with no mode does nothing.

Auto Enhance

https://assets.autorender.io/LOKVTtKVGb/e_auto_enhance/doc1/porsche.jpg

Improve (outdoor)

https://assets.autorender.io/LOKVTtKVGb/e_improve:outdoor/doc1/porsche.jpg

Improve (indoor)

https://assets.autorender.io/LOKVTtKVGb/e_improve:indoor/doc1/porsche.jpg

How does chaining work?

Combine effects in one comma-separated segment, for example e_brightness:10,e_saturation:20,e_sharpen.

Autorender applies them in a fixed pipeline — enhancements, then tonal, color, sharpen, and output — regardless of the order you write them, so the result is consistent. See automatic ordering for the full sequence. Chaining runs in a single pass, so it does not slow delivery.

Start small. Levels of 10 to 20 read as natural correction; larger values look artificial because they push tones past what the source captured.

Next steps

Brightness

Lighten or darken the whole frame with e_brightness.

Contrast

Widen or narrow the gap between light and dark areas with e_contrast.

Saturation

Increase or decrease color intensity with e_saturation.

Sharpen

Define edges and detail with e_sharpen.

Exposure

Apply a camera-style exposure shift with e_exposure.

Grayscale

Convert to black and white with e_grayscale.