Croping a Photo

This forum is for users to post tips and tricks they have found useful while working with VCarve Pro

Croping a Photo

Postby olf20 » Wed Jan 02, 2019 2:12 am

I have a picture of my brothers cat that I want to
engrave on some plexiglass.
I have used paint.net and cropped the picture to the outline
I want. However I can not for the life of me get the white
background trimmed from the outside of the cats face.

I know it can be done, but I'm stumped.

I have photo Vcarve, VcarvePro, Microsoft paint, and
paint.net.
I sure could use a nudge.
Thanks for any help!
olf20 / Bob
[color=#8000BF]Heat with corn, Mach3, Bridgeport clone, VcarvePo, Photo VCarve, Craftsman Wood Lathe[/color]
olf20
Vectric Wizard
 
Posts: 361
Joined: Thu Jun 28, 2007 12:03 am
Location: NW Ill

Re: Croping a Photo

Postby highpockets » Wed Jan 02, 2019 3:09 am

In Paint.net the tool you're looking for is the "magic wand" 4th down on left column of tool tray. Here's a very short video on using it. https://www.youtube.com/watch?v=vjMCwUkxKas
John
Maker of Chips
User avatar
highpockets
Vectric Wizard
 
Posts: 2233
Joined: Tue Jan 06, 2015 4:04 pm
Model of CNC Machine: PDJ Pilot Pro

Re: Croping a Photo

Postby olf20 » Wed Jan 02, 2019 3:21 am

Thanks Highpockets, I got that far but must be missing a step
afterwards.

Attached is a copy of the picture after paint.net

I need just the cats face.

olf20 / Bob
Attachments
100_2600 BW Cropped.jpg
[color=#8000BF]Heat with corn, Mach3, Bridgeport clone, VcarvePo, Photo VCarve, Craftsman Wood Lathe[/color]
olf20
Vectric Wizard
 
Posts: 361
Joined: Thu Jun 28, 2007 12:03 am
Location: NW Ill

Re: Croping a Photo

Postby highpockets » Wed Jan 02, 2019 3:43 am

Cat 1.png
Like this?

Cat 2.png
Or like this?
John
Maker of Chips
User avatar
highpockets
Vectric Wizard
 
Posts: 2233
Joined: Tue Jan 06, 2015 4:04 pm
Model of CNC Machine: PDJ Pilot Pro

Re: Croping a Photo

Postby olf20 » Wed Jan 02, 2019 1:16 pm

I'm not sure what your showing me, but the problem is when
I go to engrave the face it engraves a square with the face in
it. I just want the face. Is that a mask?
Hope I'm explaining this right.
Thanks for your replies!!
olf20 / Bob
[color=#8000BF]Heat with corn, Mach3, Bridgeport clone, VcarvePo, Photo VCarve, Craftsman Wood Lathe[/color]
olf20
Vectric Wizard
 
Posts: 361
Joined: Thu Jun 28, 2007 12:03 am
Location: NW Ill

Re: Croping a Photo

Postby SteveNelson46 » Wed Jan 02, 2019 4:56 pm

Try this one. It's in .png format and available as a jpeg if you need it. I used Photoshop. Not sure how it could be done in Paint.net
Attachments
100_2600 BW Cropped2.png
Steve
User avatar
SteveNelson46
Vectric Wizard
 
Posts: 467
Joined: Wed Jan 04, 2012 2:43 pm
Location: Tucson, Az.
Model of CNC Machine: Camaster Stinger with Recoil Lathe

Re: Croping a Photo

Postby ger21 » Wed Jan 02, 2019 5:42 pm

You need to save in .png format to preserve the transparent background.
Gerry - http://www.thecncwoodworker.com
ger21
Vectric Wizard
 
Posts: 1435
Joined: Sun Sep 16, 2007 2:59 pm
Location: Shelby Township, MI, USA
Model of CNC Machine: Custom DIY

Re: Croping a Photo

Postby highpockets » Wed Jan 02, 2019 6:49 pm

Bob, sort if I was confused the issue. The green is just a layer to show the head more clearly with a transparent background. I believe the problem your having is because the background on your photo is white and not transparent. Gerry is also correct, you need to be saving the image in a file format that supports transparency (tif, png ...) . I usually use .png.
John
Maker of Chips
User avatar
highpockets
Vectric Wizard
 
Posts: 2233
Joined: Tue Jan 06, 2015 4:04 pm
Model of CNC Machine: PDJ Pilot Pro

Re: Croping a Photo

Postby Wayne Locke » Wed Jan 02, 2019 10:05 pm

Why can't you just use the trace bitmap tool and then use that to tool path inside vectors.
Wayne Locke
Vectric Apprentice
 
Posts: 63
Joined: Wed May 09, 2007 9:27 pm
Location: Austin, Texas

Re: Croping a Photo

Postby olf20 » Wed Jan 02, 2019 10:45 pm

Thanks everyone. I'll try the trace idea. I had thought of that
but thought it could be done in one of the photo programs.
Thanks Gerry for the tip on .png
olf20 / Bob
[color=#8000BF]Heat with corn, Mach3, Bridgeport clone, VcarvePo, Photo VCarve, Craftsman Wood Lathe[/color]
olf20
Vectric Wizard
 
Posts: 361
Joined: Thu Jun 28, 2007 12:03 am
Location: NW Ill

Re: Croping a Photo

Postby Xxray » Wed Jan 02, 2019 10:51 pm

Not liking the odds of it looking recognizable in plexi, post back your results when able.
Doug
User avatar
Xxray
Vectric Wizard
 
Posts: 1923
Joined: Thu Feb 17, 2011 8:47 am
Location: MI USA
Model of CNC Machine: CAMaster Stinger 1

Re: Croping a Photo

Postby martin54 » Thu Jan 03, 2019 1:43 pm

+1 to what Doug has said :lol: :lol:

Just as additional information, not only does jpeg not support transparencies it is really the worst file format to use for this sort of work. It does a good job of compressing files which gives a smaller file size, thats why it is so popular on the internet where file size is quite important BUT in order to get the smaller file size a lot of the colour info is discarded. For viewing on the internet that discarded info is not needed but for printing & work like this that extra info can make all the difference to the final quality :lol: :lol:
User avatar
martin54
Vectric Wizard
 
Posts: 4453
Joined: Fri Nov 09, 2012 2:12 pm
Location: Crossgates, Scotland
Model of CNC Machine: Gerber System 48 (modified)

Re: Croping a Photo

Postby olf20 » Sat Jan 05, 2019 2:53 am

I'll try a cut on Saturday.
Martin - when going to BW does it matter if the full
quality if the color is there?? Just asking as I don't know.
Thanks
olf20 / Bob
[color=#8000BF]Heat with corn, Mach3, Bridgeport clone, VcarvePo, Photo VCarve, Craftsman Wood Lathe[/color]
olf20
Vectric Wizard
 
Posts: 361
Joined: Thu Jun 28, 2007 12:03 am
Location: NW Ill

Re: Croping a Photo

Postby martin54 » Sat Jan 05, 2019 12:26 pm

I don't have any personal experiences, to be honest I have never converted anything to black & white, if I am converting colour then I have always converted to greyscale, I have never even tried the B&W options in photo editing software out of curiosiy :lol: :lol: my gut tells me that B&W is not going to give you the best results for something like this. :lol:
User avatar
martin54
Vectric Wizard
 
Posts: 4453
Joined: Fri Nov 09, 2012 2:12 pm
Location: Crossgates, Scotland
Model of CNC Machine: Gerber System 48 (modified)

Re: Croping a Photo

Postby olf20 » Sat Jan 12, 2019 2:30 pm

I tried a couple of attempts on some scrap.
Did not turn out. Funny how my mind thinks of
things that I can not do. LOL
Thanks for the suggestions.
olf20 / Bob
[color=#8000BF]Heat with corn, Mach3, Bridgeport clone, VcarvePo, Photo VCarve, Craftsman Wood Lathe[/color]
olf20
Vectric Wizard
 
Posts: 361
Joined: Thu Jun 28, 2007 12:03 am
Location: NW Ill

Next

Return to VCarve - Tips and Tricks

Who is online

Users browsing this forum: No registered users and 4 guests