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malraff
Joined: 20 Nov 2009
Posts: 8
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 Posted: Wed Jan 27, 2010 6:13 am Post subject: Getting a white background when working with white products |
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hi all
i am trying to achieve a white as possible back ground when working with whitish products.
with darker products im getting decent results with a batch process that adjusts the image levels - this gives me an almost perfect white background
but obviously the white products are closer in color to the white back ground i am using hence level adjustments is not as rewarding
can anyone give me some tips on how to achieve what i want?
i am already using 4* 5000k white light bulbs when photographing the products, the back ground is white plastic |
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combiBob
Joined: 11 Mar 2008
Posts: 188
Location: Florida
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| Posted: Wed Jan 27, 2010 7:16 am Post subject: |
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I'm assuming you don't expect PS to do this for you in an action. Correct?
You're going to have to cut some silos or do some "hands on" brush work if you want a white bkgd, AND hold the products. |
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malraff
Joined: 20 Nov 2009
Posts: 8
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| Posted: Wed Jan 27, 2010 7:25 am Post subject: |
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well yes and no !
if the right lighting environment is created i believe a series of filters should strip the whitish background to as close to white as i need, im already achieving this with any products that are anyway colorized or darker - unfortunatly we have a good chunk of products (100s) that are white, so i need to streamline the process of getting them online |
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combiBob
Joined: 11 Mar 2008
Posts: 188
Location: Florida
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| Posted: Wed Jan 27, 2010 7:51 am Post subject: |
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I only know about this from a PS aspect. I'm not a photographer.
Photoshop knows the difference between say, color and white. It doesn't know the difference between white bkgd and white product.
I don't know of any (overall/automatic) way of blowing away a white bkgd without blowing away a white product. The white products HAVE TO be protected, and that means masking of some sort. Unfortunately, it also requires very precise masking on hundreds of images where it'll be tough to see the difference between pure white and a highlight dot.
Good luck. |
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kailasgurung
Joined: 27 Jan 2010
Posts: 6
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| Posted: Wed Jan 27, 2010 8:11 am Post subject: |
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i struggled with this for a couple of years but i found a pretty good work around.
i dunno how you are lighting them but with this technique u have to have the object abit away from a white background you put the camera on a tripod and frame the object correctly take a photograph with the back lit up then take one with just the object lit up.Then open both in photoshop you should b able to get a selection easily from the photograph with the backlight turned off then drag the selection to the image with correct light and fill your selection with white.
dunno if that made sense ask me if it didnt
kai |
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malraff
Joined: 20 Nov 2009
Posts: 8
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| Posted: Wed Jan 27, 2010 8:19 am Post subject: |
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Hi kailasgurung
yea i understand ok, thats a pretty good idea that im sure ill use down the line!
but just not what i need for this task, as i basically want to point photoshop to a folder and using a batch command process the 100s maybe 1000s of photos!
thanks for input tho! |
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kailasgurung
Joined: 27 Jan 2010
Posts: 6
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| Posted: Wed Jan 27, 2010 10:32 am Post subject: |
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hmmm im pretty sure what you want cannot be done lol if it could i would be out of a job. it would be possible if everything you wer photographing was practically identical but i think there is too many variables to have one action batch process that many images... but if you find a way to do it i would love to know 
kai |
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malraff
Joined: 20 Nov 2009
Posts: 8
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| Posted: Wed Jan 27, 2010 10:43 am Post subject: |
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no such thing as cant wont or dont - so im told !! lol 
plus kailasgurung i can do this for products of all shapes and sizes as long as they have a defining color other than white/grey
but ill let keeps yeas up to date if i get something that works! |
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