Professional raster preparation

Professional Dithering for Laser Engraving

Convert grayscale detail into controlled dot patterns that a laser can reproduce more predictably on real materials.

Stucki Floyd-Steinberg Threshold Raster Engraving Preview

Built around real laser preparation

PixGrav focuses on the image-processing stage before production, helping you create cleaner, more controlled artwork for engraving workflows.

Multiple dither methods

Compare different error-diffusion and threshold approaches instead of relying on one fixed conversion.

Detail preservation

Balance fine detail against material response and machine resolution.

Laser-ready sizing

Process at the target physical size and resolution instead of resizing after dithering.

Workflow

Keep image preparation structured and repeatable before you tune the machine itself.

Set final size or DPI
Adjust the source image
Select a dither method
Export and test on material

Why prepare the image first?

Laser speed, power, frequency, focus and material response cannot compensate for a poorly prepared source image. A controlled preprocessing stage makes testing easier because the artwork stays consistent while machine parameters change.

Frequently asked questions

Which dithering method is best?

There is no universal winner. The best method depends on material, spot size, DPI and the tonal structure of the image.

Should I resize before dithering?

Yes. Dithering should normally be applied at the final engraving resolution so the pattern is not distorted later.

Is dithering useful for wood?

Yes. It is especially useful for photographic engraving where the material cannot reproduce continuous grayscale directly.

Prepare your next engraving file in PixGrav

Use the laser-focused workflow for image enhancement, background cleanup, resizing, dithering and other preparation tools.