Working withimageRunpreped images - do I use greyscale or image ?stucki

I hope this is a simple question to answer. It’s more of a case of putting me out of my misery by being able to understand how imageR and lightburn works.

I have tried with an imageR preped image and a straight download. The preview results are the same (almost all black). I have also messed around with adjusting speeds and per centages,

In a nutshell: I am trying to use image > stucki but the image is almost non existant despite making slight and extreme adjustments. I’m just wondering if I can use greyscale as this is the only option that appears to work in preview or if I should use stucki and ignore the preview?

Below is an image of the settings that I have selected

Next is an image comparison of the adjusted image. The adjusted image (RH) is the one that is shown in preview of I select greyscale.

THis image is a preview of the image when using Stucki. I’ve messed around with the laser settings for half an hour and haven’t been able to make the preview good enough to print.

I wanted to try 1400 @ 10% for engraving on a painted tile as a benchmark for testing. It has worked with a few other images not from imageR.

Anthony

If you are happy with the ImageR version you can select ‘Passthrough’ and Lightburn will not re-process the image…it will go to the laser as you see it in ImageR.

The preview looks like you have brightness, contrast or gamma at an extreme…but maybe thats the LB reprocessing.

I think generally what you see in preview isnt exactly what the laser produces.

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All of the photo manipulation is done within Imag-R, so you can’t use the image processing that Lightburn has supplied.

I wouldn’t think it will even let you into that screen if you have pass-through enabled.

You must use the pass-through option in the cut/layer window to allow the already processed photo to bypass any manipulation by Lightburn.

The interval and everything else is set by Imag-R, so all Lightburn does is ship it to the laser.


You should use preview, but it helps if you understand what it’s showing you.

Lightburn has no idea about your laser is a, mW or 10kW the material could be paper, rock or steel. Lightburn can’t know any of this.

The preview shows you where it will lase. Try zooming in on the preview, it’s likely you’ll be able to see part of the image. It’s lasing a lot, so that’s what you see.


I’ve used Imag-R and I found if I need some powerful graphic manipulation I use Gimp, once I’ve done the heave image lifting, I do all the rest of the process through Lightburn. It has tools that work very good, even though it’s not a graphics package, in that sense of the word.

It takes time to get a handle on how this stuff works, so cheer up, you’re getting it :tada:

:smiley_cat:

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