PhotoshopForums.com Home
Navigate Contact FAQ Search Members
Overlaying points on a picture
Post new topic   Reply to topic    PhotoshopForums.com Forum Index -> General Photoshop and Design Discussion
Goto page 1, 2  Next
 See a User Guidelines violation? Please contact us.
Author Message

Bob95065

Joined: 04 Jun 2009
Posts: 8
Location: Santa Cruz, CA


PostPosted: Thu Jun 04, 2009 3:19 pm    Post subject: Overlaying points on a picture Reply with quote

I have a technical question for you.

For work I surveyed a field using a Leica Total station. The data comes out in Cartesian coordinates (X,Y,Z values). I was able to use my surveying software to display them on my computer screen and make a .bmp picture out of them. The points are small red X over a white background.

I found the field using Google Earth and made a .bpm out of it as well.

What I want to overlay the red points on the map. I can use scaling to fit points to terrestrial features that I measured so I can see where the points in the field are on eth overhead photo.

I am new to Photoshop and have no idea how to do this. I brought both .bmp files into Photoshop and have them in different layers. The problem I am having is the layer with the red X points has a white background and when I put it over the photo of the field from Google Earth I see the white background from the points file. How to I make the white in the points file invisible so only the red Xs are left?

I appreciate any help you can give me.

Bob
View user's profile Send private message

iDad

Joined: 22 Feb 2009
Posts: 767


OS: iMac 24" 1TB harddrive OS10.5.6

PostPosted: Thu Jun 04, 2009 3:48 pm    Post subject: Reply with quote

open layer palette right click layer that you want background removed select remove background from dropdown menu
View user's profile Send private message

iDad

Joined: 22 Feb 2009
Posts: 767


OS: iMac 24" 1TB harddrive OS10.5.6

PostPosted: Thu Jun 04, 2009 3:51 pm    Post subject: Reply with quote

Also you'll need to delete the white areas using a selection tool
View user's profile Send private message

Bob95065

Joined: 04 Jun 2009
Posts: 8
Location: Santa Cruz, CA


PostPosted: Thu Jun 04, 2009 3:51 pm    Post subject: Reply with quote

Which dropdown menu do I find remove background in?
View user's profile Send private message

iDad

Joined: 22 Feb 2009
Posts: 767


OS: iMac 24" 1TB harddrive OS10.5.6

PostPosted: Thu Jun 04, 2009 3:55 pm    Post subject: Reply with quote

menu bar select window>layers, you'll see something like this with separate layers


Picture 1.png
 Description:
 Filesize:  53.66 KB
 Viewed:  359 Time(s)

Picture 1.png


View user's profile Send private message

Bob95065

Joined: 04 Jun 2009
Posts: 8
Location: Santa Cruz, CA


PostPosted: Thu Jun 04, 2009 4:04 pm    Post subject: Reply with quote

I don't see the same menu. I am using a CS4 Extended demo version. How about you?
View user's profile Send private message

hawkeye

Joined: 14 May 2009
Posts: 2377
Location: Mesa, Az

OS: Windows 7 Pro 64 bit

PostPosted: Thu Jun 04, 2009 4:30 pm    Post subject: Reply with quote

In the layers pallette, click on the layer with the red X and the white background to select it.

Using the Magic Wand tool. (Uncheck contiguous at the top and set the Tolerance to about 25 to start.) Click on the white area, then Ctrl+X to cut those pixels.



ScreenShot001.jpg
 Description:
 Filesize:  74.87 KB
 Viewed:  328 Time(s)

ScreenShot001.jpg


View user's profile Send private message

Bob95065

Joined: 04 Jun 2009
Posts: 8
Location: Santa Cruz, CA


PostPosted: Thu Jun 04, 2009 4:40 pm    Post subject: Reply with quote

I don't see the magic wand icon that does what your version is doing. There is a Is it in a drop-down menu somewhere? I'm attaching a screen shot.


PS Screenshot2.JPG
 Description:
 Filesize:  138.47 KB
 Viewed:  317 Time(s)

PS Screenshot2.JPG


View user's profile Send private message

hawkeye

Joined: 14 May 2009
Posts: 2377
Location: Mesa, Az

OS: Windows 7 Pro 64 bit

PostPosted: Thu Jun 04, 2009 4:44 pm    Post subject: Reply with quote

Hover over the icon where I indicated and hold down the left mouse key, you'll see it. Wherever there is a small triangle sign on the tool pallette it means there is a fly-out menu for more tools.
View user's profile Send private message

Bob95065

Joined: 04 Jun 2009
Posts: 8
Location: Santa Cruz, CA


PostPosted: Thu Jun 04, 2009 4:48 pm    Post subject: Reply with quote

This error came up


Error.JPG
 Description:
 Filesize:  19.62 KB
 Viewed:  292 Time(s)

Error.JPG


View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    PhotoshopForums.com Forum Index -> General Photoshop and Design Discussion All times are GMT - 6 Hours
Goto page 1, 2  Next
Page 1 of 2
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Contact - User Guidelines >

Copyright © 2003-2016. PhotoshopForums.com, iFroggy Network. All Rights Reserved.
Powered by phpBB © phpBB Group. phpBB SEO. Privacy Policy.
We are in no way affiliated with Adobe. Photoshop, Adobe and related marks are registered trademarks of Adobe.
PhotoshopForums.com