How to distinguish the objects and background?

kpt · Post by **kpt** » Fri Apr 02, 2010 8:57 am

Have you tried using the Dodge tool set to Highlights and about 10% to make the almost-white background pure white?

Mike Hale · Post by **Mike Hale** » Fri Apr 02, 2010 1:28 pm

wbloodc wrote:I really don't wanna do it by hand any more.

I understand that, I have felt that way myself from time to time which is why I have tried to script background selection in the past.

But we are really talking about masking here. There are lots of plugins that claim they make masking a snap. None of them work automatically and none work 100% of the time.

I really think that this is something that has to be done by hand. Some of those masking plugins will help. I think that the quick select tool and the refined edge dialog would be more helpful than the ploygonal lasso tool.

I guess what I'm really saying is if it was possible to make script/plugin that could automatically detect the background of an image someone would have done so and be making money off selling it.

Patrick · Post by **Patrick** » Sat Apr 03, 2010 2:50 am

Mike is correct, if you want any sort of quality it will need to be done by hand. One of the positions in the photostudio at my work does nothing but extract images all day (and to be honest I don't think we have the same volume of you at several thousand a day). It is not glamorous my any means but it is work that needs to be done.

Patrick

ddbell · Post by **ddbell** » Sun Oct 24, 2010 8:57 pm

I ran across this post so I thought I'd reply because it sounds like it may help some of you out.

Here is a script that I created to mask green screen images in Photoshop and correct for color spill. It works pretty well. It goes through a fairly extensive channel blending process to create both the layer mask and spill suppression mask. I have this as a freeware download. However, I saved it in binary because I didn't want others downloading it and then trying to sell it with their name on it (although I'm not even sure if the binary is encrypted anyway).

Anyway, here is where you can download this at.

http://www.photoshopgreenscreen.com

One more thing, You don't need special "chroma key" paint that the website link from the above reply shows, Behr Premium Plus Flat or Flat enamel paint from Home Depot in the color "Gamma Sector Green" works perfect as a chroma key green color. Its as pure of a green as I could find. In sRGB, is shoots right at a hue of 120 with saturation values of 50-60 which is almost perfect. It's in the Disney paint collection.

visual · Post by **visual** » Tue Dec 06, 2011 1:49 pm

Hi, maybe someone of you can help me with a similar problem. I also have to process up to 800 pictures for an online-shop a day and have realised that especially the pictures displaying metallic objects, like bracelets, chronometers, instruments or car equipment looks not so good with my photoshop version. I'm no great expert with other programmes as I always had to use this one, but I would switch if someone can recommend a programme more appropropriate for these kind of pics.
Thank you in advance! It would be great if someone could help!