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I need to learn background removing advanced ways please.


H

Hytham

Well-Known Member
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Hello everybody.

I wanna good source which i can learn how to remove any background from photos..specially grained and low contrast ones....like this:

1.jpg

I know that using channels is useful in this case..but I need more experience with this way..plus I tried it and I can't keep the smoothness of the image...is there any other ways ?

Thank you.​
 
Pen tool around the object and make a selection....

With that you can refine edges and your done.

This is my preferred way to extract.
 
On a simple one like that with an even background the magic wand tool is a good idea, or alterntively also the colour>curves tool
 
sprucemagoo1 said:
Unless you want it to be accurate and totally smooth! In which case you would listen to Inkz.
Click to expand...

On more complicated pictures sure, but on a simple picture like the one above, i dont see why the curves tool shouldnt work.
A 10 second job did the following

Photshop Req Compare.jpg

As you see did that not only remove the grey and evened the background out, it also stayed just as smooth as in the original, and removed automatically the gray parts in between the single middle sections of the ring
 
The problem with using an imprecise method like the magic wand is demonstrated in your post Alosolo. You have lost the integrity of the metal and the jewels. The same thing happens with color select and blend if. Quick select will be inexact also. There is so little contrast between the ring and the background that you can't use channel extractions any better than the above methods.

The only way to get a good selection from a low resolution image with low color contrast and intricate curves and details is to use the pen tool. It is time consuming and takes practice, but any other method will require so much time cleaning up the edges that you may as well spend a little extra time making a crisp, clean pen tool selection.

That is IMHO.
 
sprucemagoo1 said:
That is not removing the background.
Click to expand...
Sigh..you do see in what format i uploaded the picture right? And you also know what happens with pictures with transperent background if its saved in jpg i assume. I know what removing the background is, but on the ffffff white you just get a better contrast then with the transparancy and this forums fbfbfb grey.
 
@ibclare: Oh ok, i understand that a little better now. Thx for explaining. But im still a little confused, what do you mean with "the integrety of the metal and the jewels". I dont understand the meaning of integrety in this case
 
What are you sighing at me for? I have only said the same thing as Ibclare, and the comment you made of "remove the grey and evened the background out," didn't scream you had "removed" any background from the image. I'm also not in the habbit of checking to see if an image is jpeg, gif, png or any other format.

The answer to the question has bee given, and a reason for the answer, this should be it.
 
Alosolo said:
@ibclare: what do you mean with "the integrety of the metal and the jewels".
Click to expand...

If you look at the metal and the gems in the selection you made and compare them to the original, you can see that the lustre of the metal and the color and sparkle of the gems do not have the same intensity anymore. There is too big a loss of pixels ... apparently.

Here are a couple more definitions of "integrity."

* the state of being whole, entire, or undiminished
* a sound, unimpaired, or perfect condition
 
Inkz said:
Pen tool around the object and make a selection....

With that you can refine edges and your done.

This is my preferred way to extract.
Click to expand...


How much time would it take your way ? I am not good with the pen, this pic has lots of "holes" in the bracelet to open up...I am not sighing, but trying to learn...I do sigh when I spend hours with the pen and have little to show. I did this by masking and remasking. I have all the holes done and all the jewels still there.

are you drawing everything, and letting refine edge to clean it up ?
 
As mentioned in another thread, learning to use the pen tool doesn't happen over night, but things worth doing are never easy. If I was to tackle this with the pen, I would think 20-30 mins would be about the length of time it would take.

I think it is because so many people find the pen very daunting, that lesser methods are used so much. And also there is an element of, how exact to need to be. Although other methods may suffice, I always use the pen for such jobs, because it is a more precise form of selection.
 
Thanks Chad ! I did practice with the magnetic lasso and refine edge. It does look a lot better the more I play. I cannot seem to get a good selection with the pen....any place to point me for practice with an image ?
 
The best thing to do is search for tutorials on YouTube, as these will explain to you things that make using the pen easier, more clearly than I can. Practice on high resolution images so you have definite lines to follow. This way you will learn to manipulate the paths and curves to how you want them with quite a lot of speed.
 
Thanks Clare.....I did the oranges....:rolleyes:

I'm going thru the others tonight...:banghead: :mrgreen:
 
You I would think you will be able to be slightly more accurate with the track ball, just mack sure you don't have the movement speed to something close to slow, just to give you even more control. I usually use the touch pad on my dell laptop, but I could quite as easily use my Bamboo tablet, or a mouse. I don't really have a preference in that way. The key is learning keyboard short cuts, mainly how shift and alt affect the anchors and handle when clicking, but also "P", "+", and "-".
 


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