How to remove background from image ? (select --> By Color not work)

mamiwmamong · **Joined:** Dec 02, 2018 **Posts:** 4

GIMP Version: 2.8.14
Operating System: Windows
GIMP Experience: New User

From this topic http://gimpchat.com/viewtopic.php?f=8&t=17053

Tas_mania advice me like this ===>

Quote:

To remove background color right-click the layer in the layers box and 'add alpha channel'. Then 'Select' > 'By Color'. Next left-click the color you want to remove and 'Edit' > 'Clear'. Then 'Select' > 'None'.

It's work good with some image.

But how to remove background on complex image. please see attachments.

I want to store only a dog. How can i do ?

Wallace · **Posted:** Mon Dec 03, 2018 2:00 am **(#2)**

mamiwmamong wrote:

GIMP Version: 2.8.14
Operating System: Windows
GIMP Experience: New User

From this topic http://gimpchat.com/viewtopic.php?f=8&t=17053

Tas_mania advice me like this ===>

Quote:

To remove background color right-click the layer in the layers box and 'add alpha channel'. Then 'Select' > 'By Color'. Next left-click the color you want to remove and 'Edit' > 'Clear'. Then 'Select' > 'None'.

It's work good with some image.

But how to remove background on complex image. please see attachments.

I want to store only a dog. How can i do ?

Using a layer mask,
would be a good way to do this kind of image.

I did this very quickly using a layer mask.
It's not perfect,
but it can be done much better.
If more time was given to it.

Attachment:

350533_wallace.png [ 134.03 KiB | Viewed 4835 times ]

mamiwmamong · **Joined:** Dec 02, 2018 **Posts:** 4

Wallace wrote:

mamiwmamong wrote:

GIMP Version: 2.8.14
Operating System: Windows
GIMP Experience: New User

From this topic http://gimpchat.com/viewtopic.php?f=8&t=17053

Tas_mania advice me like this ===>

Quote:

To remove background color right-click the layer in the layers box and 'add alpha channel'. Then 'Select' > 'By Color'. Next left-click the color you want to remove and 'Edit' > 'Clear'. Then 'Select' > 'None'.

It's work good with some image.

But how to remove background on complex image. please see attachments.

I want to store only a dog. How can i do ?

Using a layer mask,
would be a good way to do this kind of image.

I did this very quickly using a layer mask.
It's not perfect,
but it can be done much better.
If more time was given to it.

Attachment:

350533_wallace.png

Could you please give me some about how to do that step by step sir ? and may be give me some finished image by not resize sir ?

Wallace · **Posted:** Mon Dec 03, 2018 2:51 am **(#4)**

mamiwmamong wrote:

Could you please give me some about how to do that step by step sir ? and may be give me some finished image by not resize sir ?

It's simple to do.
Add a layer mask to the image.
Layer>Mask>Add Layer Mask.
The default setting for a layer Mask,
is White Full Opacity.

The layer mask is painted on.
Black will remove pixels and white will restore them back.
Paint onto the layer mask with Black,
to remove what you don't want.
If you make a mistake,
you can use white to paint over the mistake and restore the pixels,
repairing the mistake.

Attachment:

350533_wallace_2.xcf [5.92 MiB]
Downloaded 232 times

mamiwmamong · **Joined:** Dec 02, 2018 **Posts:** 4

Wallace wrote:

mamiwmamong wrote:

Could you please give me some about how to do that step by step sir ? and may be give me some finished image by not resize sir ?

It's simple to do.
Add a layer mask to the image.
Layer>Mask>Add Layer Mask.
The default setting for a layer Mask,
is White is Full Opacity.
[ Image ]

The layer mask is painted on.
Black will remove pixels and white will restore them back.
Paint onto the layer mask with Black,
to remove what you don't want.
If you make a mistake,
you can use white to paint over the mistake and restore the pixels,
repairing the mistake.
[ Image ]

Attachment:

350533_wallace_2.xcf

Could you please give me some video please ? i can not do that.

Tas_mania · **Joined:** Nov 04, 2015 **Posts:** 1477

Quote:

Could you please give me some video please ? i can not do that.

https://www.youtube.com/results?search_query=gimp+add+layer+mask

rich2005 · **Joined:** Mar 04, 2011 **Posts:** 2615

Gmic interactive foreground extract. (in the contours menu)

An image like that only takes a minute to dot around the boundary, hitting space bar towards the end to check the extraction

Attachment:

01-extract.jpg [ 194.31 KiB | Viewed 4796 times ]

Any missing bits can be touched-up with the clone tool or use it to make a layer mask. Often quicker than painting in a mask.

Attachment:

02-extract.jpg [ 144.54 KiB | Viewed 4796 times ]

Video demo: https://youtu.be/Yu46Gs1NI34