Problem with STag generstor

[sixer51]

I tested the provided tag generator, but the output is something like this:

If I stop it before eroding and dilating, the output stag is

Could you provide any suggestions on solving this problem?

[bbenligiray]

The image on the bottom looks right, this needs to be eroded-dliated a few times to smooth the pattern edges and the top left label needs to be printed.
With the top one, the background seems to have been set to transparent, or maybe it's to do with how the file is being saved. If you're sure that you didn't change those yourself, try saving the image as a JPG.

[sixer51]

Thanks for your suggestion. The bottom image is to show that before eroded-dilated, it still looks fine, but after that, the image isn't shown as expected. I think that there should be something wrong with the eroded-dilated process.

It seems that the value in this line should be 0 instead of 255, but it still cannot solve my problem.

stag/ref/marker generator/Form1.cs

Line 321 in 6ea0f3b

*((byte*)(imgData.Scan0 + k * imgData.Stride + j * 4) + 3) = 255;

I tested saving the image as JPG, but it is still wrong.