Author Topic: How to knock out backgrounds in Corel?  (Read 3759 times)

Offline Prosperi-Tees

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How to knock out backgrounds in Corel?
« on: September 02, 2012, 11:50:02 PM »
There has to be a way and I just dont know it. RGB bitmap and I am trying to make the background transparent so my DTG people can print it.


Offline screenxpress

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Re: How to knock out backgrounds in Corel?
« Reply #1 on: September 03, 2012, 12:44:12 AM »
I'm sure I'm missing something, but if you want it gone, i.e. transparent, why have a background in the first place? 

I'm only familiar with setting backgrounds transparent for web pages.
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Offline Prosperi-Tees

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Re: How to knock out backgrounds in Corel?
« Reply #2 on: September 03, 2012, 12:49:26 AM »
Its actually that same file you knocked out for me last week just revised. I recieved it as a jpg, put it into corel and converted to a rgb bitmap because thats why my dtg'er said she needed. Well it would have worked if going on white shirts but not on darks because it has the square around it?

Offline prozyan

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Re: How to knock out backgrounds in Corel?
« Reply #3 on: September 03, 2012, 12:55:23 AM »
Import it into Corel, covert to bitmap, select transparent background.

Should do the trick unless I'm missing something.
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Offline Prosperi-Tees

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Re: How to knock out backgrounds in Corel?
« Reply #4 on: September 03, 2012, 01:01:03 AM »
Import it into Corel, covert to bitmap, select transparent background.

Should do the trick unless I'm missing something.
I did that and this is what I get....

Offline screenxpress

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Re: How to knock out backgrounds in Corel?
« Reply #5 on: September 03, 2012, 01:37:08 AM »
Ok, try this, but I have to tell you ahead of time, you will not be able to keep a transparent background in a .jpg format.  I'm pretty sure the only way you can get it to keep its transparency is as a .png or .gif.  Your DTG should be able to accept a .gif format.

Anyway.  In case you have any nodes in the image, draw around the entire image and GROUP.  Convert to RGB Bitmap with transparent background. 

Edit in Photopaint, and use the magic wand to delete the white background.  You may have to fiddle with the Tolerance to get rid of as much white as you can.  Then EXPORT and Save as type ".gif".  If you drop the .gif back onto your original canvas, you should see the background is transparent.  Hope that works.
« Last Edit: September 03, 2012, 01:41:26 AM by screenxpress »
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Offline Frog

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Re: How to knock out backgrounds in Corel?
« Reply #6 on: September 03, 2012, 01:44:33 AM »
Do they really need something more than this?
Just cropped. Still a white background, but no square.
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Offline Prosperi-Tees

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Re: How to knock out backgrounds in Corel?
« Reply #7 on: September 03, 2012, 01:49:09 AM »
Do they really need something more than this?
Just cropped. Still a white background, but no square.
Nah Andy, I put the black square to show what would print on a black shirt which would be the white square and thats what we dont want.


Offline Prosperi-Tees

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Re: How to knock out backgrounds in Corel?
« Reply #8 on: September 03, 2012, 01:49:53 AM »
Ok, try this, but I have to tell you ahead of time, you will not be able to keep a transparent background in a .jpg format.  I'm pretty sure the only way you can get it to keep its transparency is as a .png or .gif.  Your DTG should be able to accept a .gif format.

Anyway.  In case you have any nodes in the image, draw around the entire image and GROUP.  Convert to RGB Bitmap with transparent background. 

Edit in Photopaint, and use the magic wand to delete the white background.  You may have to fiddle with the Tolerance to get rid of as much white as you can.  Then EXPORT and Save as type ".gif".  If you drop the .gif back onto your original canvas, you should see the background is transparent.  Hope that works.
I will give that a shot and see what happens, thanks ill update when I try.

Offline Im-Magic

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Re: How to knock out backgrounds in Corel?
« Reply #9 on: September 03, 2012, 01:51:50 AM »
Export the RGB Bitmap as a Photoshop PSD file with the background transparent on. Your dtg should work with the psd file.
Stuart

Offline Prosperi-Tees

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Re: How to knock out backgrounds in Corel?
« Reply #10 on: September 03, 2012, 02:18:39 AM »
I did it. And it looks like crap. Wow...

Offline Frog

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Re: How to knock out backgrounds in Corel?
« Reply #11 on: September 03, 2012, 02:23:31 AM »
It looks like crap because the fades are still using white, when they should be fading out of black (or whatever color you're going on. In other words, the fade itself needs to be transparent.

If you get nowhere with this, talk to Jason 23 about a re-draw.
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Offline inkman996

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Re: How to knock out backgrounds in Corel?
« Reply #12 on: September 03, 2012, 09:09:05 AM »
Don't use .gif or .png both those a serious compression formats. For DTG export as TIFF with transparent background, TIFF is lossless and retains all the details.

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Offline abchung

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Re: How to knock out backgrounds in Corel?
« Reply #13 on: September 03, 2012, 11:22:02 AM »
You can go to Corel Photo-Paint then in there you can play around with the Mask.

Menu -> Mask -> color mask.

Pick white and knock out the white. JUST BECAREFUL OF KNOCKING OUT THE WHITE IN THE GRAPHIC AREA.

Good luck
Anthony


Offline screenxpress

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Re: How to knock out backgrounds in Corel?
« Reply #14 on: September 03, 2012, 01:27:04 PM »
Don't use .gif or .png both those a serious compression formats. For DTG export as TIFF with transparent background, TIFF is lossless and retains all the details.

I liked that.  Using the same exact image with the white knocked out, the .tif had a much smoother edge and with less white edge ghosting.
Anything important is never left to the vote of the people. We only get to vote on some man; we never get to vote on what he is to do.  Will Rogers