Image Properties Tab
Image File. The name of the image.
Grayscale Engraving label. The top right side will remind you how you setup your laser tool: for Grayscale or for Black & White.
Position (X, Y). You can position the image on the BCL main canvas using these controls.
Size (Width, Height). You can resize the image in width and height.
Size by Percentage. You can resize the image by percentage.
Negative Checkbox. You can reverse the image and make it look like a negative.
Use Colors [ ] Red [ ] Green [ ] Blue. The color selectors allow you to control which channels are used when converting from color to black and white or grayscale.
Normally you can leave these untouched, but some images may look better if the conversion process ignores certain channels. This depends entirely on the image and are most useful when doing black and white burning.
Generally if the your getting any of the following:
- Preview image is noisy (lots of small burn areas which you don’t want)
- Unwanted details being burned (e.g. Drop-shadows on text)
- Wanted areas are missing and you can’t correct these with the threshold, brightness or contrast, then experimenting by removing some color channels might help clean up the image.
Number of Gray Shades To Use. To optimize the burning process when using grayscale, BCL converts the original image to a reduced (manageable) number of shades.
For example, if you set this to 3 then you’ll only see three distinct shades of gray in the preview window and the final burn: the darkest and lightest shades and a shade in the middle of those two.
The lower the number of shades the worse the image will look (for photos; some graphics such as logos etc might only have a few different shades in them to start with). 16 shades is about the maximum that wood can reproduce and give excellent results.
The more shades you use, the longer the image will take to burn. You should use only the largest number of shades that you need. Changing this number will alter the preview image so you can get an idea of the quality.
It’s worth trying lower numbers to get faster burns if the quality is not impaired too much, or at all. For example, you may see no difference between 16 and 12 shades. In this instance you should just use 12 for a faster burn.
Brightness. You can adjust the brightness in the real preview to make the image look like you want it to look.
Contrast. You can adjust the contrast in the real preview to make the image look like you want it to look.
[ ] Real Preview checkbox. This is the way the image will look on the actual wood.
Note: The real preview is an approximation of how the image will look when it is burned.
Zoom. You can click on either the left or the right side image and drag it around. You can also roll the mouse wheel to zoom the image in and out.