How is the pencil effect generated?

The pipeline combines a grayscale conversion, an inverted blurred layer, and color-dodge blending to form the line-and-tone rendering.

What is the difference between the two styles?

Grayscale produces neutral pencil tones. Color-tinted mode combines the sketch luminance with colors from the source image.

How does line softness affect the result?

Lower values keep narrower tonal transitions. Higher values blur the inverted layer more broadly before blending.

Developer Alat

Sketsa Pensil

Classic photo-to-sketch transformation. We invert the grayscale image, apply a Gaussian blur, then color-dodge blend the blurred inverse over the original — exactly the technique professional retouchers use in Photoshop. The result looks like a hand-drawn pencil illustration.

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Pencil Sketch

The sketch pipeline converts image tones, blurs an inverted layer, and applies a color-dodge blend. Choose grayscale or color-tinted output, then adjust line softness and contrast to shape the drawing effect.

Available Controls

Style: grayscale pencil or color-tinted pencil
Line softness: blur radius from 5 to 99
Intensity: contrast multiplier from 0.5 to 1.5
Output format: PNG or JPG

How to Use Pencil Sketch

Select an image — Choose the JPG, PNG, or WebP photo to render.
Shape the sketch — Choose a style, then adjust line softness and intensity.
Review and download — Inspect the sketch preview, process it, and save the generated PNG or JPG.

Frequently Asked Questions

How is the pencil effect generated?: The pipeline combines a grayscale conversion, an inverted blurred layer, and color-dodge blending to form the line-and-tone rendering.
What is the difference between the two styles?: Grayscale produces neutral pencil tones. Color-tinted mode combines the sketch luminance with colors from the source image.
How does line softness affect the result?: Lower values keep narrower tonal transitions. Higher values blur the inverted layer more broadly before blending.

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