Hi all,
In my work I use scanned maps that I often need to put together to
create a larger map. For this I use MapInfo, which has the ability to
convert one of the colors in an image to transparent, which is quite
handy for eliminating white spaces on overlapping adjacent map
boundaries.
So, i used a polygonal lasso tool to very precisely select the image
area, inverted the selection to select its rim and tried applying the
fill tool to fill the rim area with white (RGB: 255, 255, 255).
Blending mode Normal, Opacity 100%. The image is displayed on the
Background layer, with Opacity and Fill both at 100%. According to
, various books and tutorials that should fill every pixel of the
selected area with the selected color, right?
Well, apparently not. A small number of pixels retained some color,
simply going lighter. Even after several subsequent uses of the fill
tool, I can still see them like ghosts on the white background, and
Info tool gives me their RGB values as e.g. 254, 253, 254.
I tried using the Eraser tool on the selected area (needless to say
the background color is white), to no avail.
Tried creating a new layer, copying the selection to it, setting again
the layer opacity and fill to 100%, filling it with white - no go. The
ghosts are still there, the histogram of the selected area showing
them clearly.
The image is an RGB JPEG. When I do the same thing on some BMP files
that are in Indexed color mode everything is OK, of course, I guess
because of the simpler color scheme.
So, my question is: how do I fill *every* #$% pixel of the selected
area with *exactly* the same color, and am I doing something wrong ?

TIA
Nash

Nash wrote:
> Hi all,
> In my work I use scanned maps that I often need to put together to
> create a larger map. For this I use MapInfo, which has the ability to
> convert one of the colors in an image to transparent, which is quite
> handy for eliminating white spaces on overlapping adjacent map
> boundaries.
> So, i used a polygonal lasso tool to very precisely select the image
> area, inverted the selection to select its rim and tried applying the
> fill tool to fill the rim area with white (RGB: 255, 255, 255).
> Blending mode Normal, Opacity 100%. The image is displayed on the
> Background layer, with Opacity and Fill both at 100%. According to
> , various books and tutorials that should fill every pixel of the
> selected area with the selected color, right?
> Well, apparently not. A small number of pixels retained some color,
> simply going lighter. Even after several subsequent uses of the fill
> tool, I can still see them like ghosts on the white background, and
> Info tool gives me their RGB values as e.g. 254, 253, 254.
> I tried using the Eraser tool on the selected area (needless to say
> the background color is white), to no avail.
> Tried creating a new layer, copying the selection to it, setting again
> the layer opacity and fill to 100%, filling it with white - no go. The
> ghosts are still there, the histogram of the selected area showing
> them clearly.
> The image is an RGB JPEG. When I do the same thing on some BMP files
> that are in Indexed color mode everything is OK, of course, I guess
> because of the simpler color scheme.
> So, my question is: how do I fill *every* #$% pixel of the selected
> area with *exactly* the same color, and am I doing something wrong ?
>
> TIA
> Nash

If you simply want to fill the area with white, use Edit/Clear. If you
want to fill with a selected color, use the eyedropper tool to sample
the wanted color and use Edit/Fill, Foreground color.

Colin D.

--
Posted via a free Usenet account from http://www.teranews.com

Nash wrote:
> Hi all,
> In my work I use scanned maps that I often need to put together to
> create a larger map. For this I use MapInfo, which has the ability to
> convert one of the colors in an image to transparent, which is quite
> handy for eliminating white spaces on overlapping adjacent map
> boundaries.
> So, i used a polygonal lasso tool to very precisely select the image
> area, inverted the selection to select its rim and tried applying the
> fill tool to fill the rim area with white (RGB: 255, 255, 255).
> Blending mode Normal, Opacity 100%. The image is displayed on the
> Background layer, with Opacity and Fill both at 100%. According to
> , various books and tutorials that should fill every pixel of the
> selected area with the selected color, right?
> Well, apparently not. A small number of pixels retained some color,
> simply going lighter. Even after several subsequent uses of the fill
> tool, I can still see them like ghosts on the white background, and
> Info tool gives me their RGB values as e.g. 254, 253, 254.
> I tried using the Eraser tool on the selected area (needless to say
> the background color is white), to no avail.
> Tried creating a new layer, copying the selection to it, setting again
> the layer opacity and fill to 100%, filling it with white - no go. The
> ghosts are still there, the histogram of the selected area showing
> them clearly.
> The image is an RGB JPEG. When I do the same thing on some BMP files
> that are in Indexed color mode everything is OK, of course, I guess
> because of the simpler color scheme.
> So, my question is: how do I fill *every* #$% pixel of the selected
> area with *exactly* the same color, and am I doing something wrong ?
>
> TIA
> Nash

Do you have the Tolerance setting on your Fill Tool set to less than 255?

R.

"Nash" <lontche@yahoo.com> wrote in message
news:b0eb11e0-1dbf-4759-a087-e723053b095d@k2g2000hse.googlegroups.com...
> Hi all,
> In my work I use scanned maps that I often need to put together to
> create a larger map. For this I use MapInfo, which has the ability to
> convert one of the colors in an image to transparent, which is quite
> handy for eliminating white spaces on overlapping adjacent map
> boundaries.
> So, i used a polygonal lasso tool to very precisely select the image
> area, inverted the selection to select its rim and tried applying the
> fill tool to fill the rim area with white (RGB: 255, 255, 255).
> Blending mode Normal, Opacity 100%. The image is displayed on the
> Background layer, with Opacity and Fill both at 100%. According to
> , various books and tutorials that should fill every pixel of the
> selected area with the selected color, right?
> Well, apparently not. A small number of pixels retained some color,
> simply going lighter. Even after several subsequent uses of the fill
> tool, I can still see them like ghosts on the white background, and
> Info tool gives me their RGB values as e.g. 254, 253, 254.
> I tried using the Eraser tool on the selected area (needless to say
> the background color is white), to no avail.
> Tried creating a new layer, copying the selection to it, setting again
> the layer opacity and fill to 100%, filling it with white - no go. The
> ghosts are still there, the histogram of the selected area showing
> them clearly.
> The image is an RGB JPEG. When I do the same thing on some BMP files
> that are in Indexed color mode everything is OK, of course, I guess
> because of the simpler color scheme.
> So, my question is: how do I fill *every* #$% pixel of the selected
> area with *exactly* the same color, and am I doing something wrong ?
>
> TIA
> Nash


On your original selection, before inverting, did you have "Feather" set to
Zero??

Roy G

"Roy G" <roy.gibson1@virgin.net> found these unused words:

>
>"Nash" <lontche@yahoo.com> wrote in message
>news:b0eb11e0-1dbf-4759-a087-e723053b095d@k2g2000hse.googlegroups.com...
>> Hi all,
>> In my work I use scanned maps that I often need to put together to
>> create a larger map. For this I use MapInfo, which has the ability to
>> convert one of the colors in an image to transparent, which is quite
>> handy for eliminating white spaces on overlapping adjacent map
>> boundaries.
>> So, i used a polygonal lasso tool to very precisely select the image
>> area, inverted the selection to select its rim and tried applying the
>> fill tool to fill the rim area with white (RGB: 255, 255, 255).
>> Blending mode Normal, Opacity 100%. The image is displayed on the
>> Background layer, with Opacity and Fill both at 100%. According to
>> , various books and tutorials that should fill every pixel of the
>> selected area with the selected color, right?
>> Well, apparently not. A small number of pixels retained some color,
>> simply going lighter. Even after several subsequent uses of the fill
>> tool, I can still see them like ghosts on the white background, and
>> Info tool gives me their RGB values as e.g. 254, 253, 254.
>> I tried using the Eraser tool on the selected area (needless to say
>> the background color is white), to no avail.
>> Tried creating a new layer, copying the selection to it, setting again
>> the layer opacity and fill to 100%, filling it with white - no go. The
>> ghosts are still there, the histogram of the selected area showing
>> them clearly.
>> The image is an RGB JPEG. When I do the same thing on some BMP files
>> that are in Indexed color mode everything is OK, of course, I guess
>> because of the simpler color scheme.
>> So, my question is: how do I fill *every* #$% pixel of the selected
>> area with *exactly* the same color, and am I doing something wrong ?
>>
>> TIA
>> Nash
>
>
>On your original selection, before inverting, did you have "Feather" set to
>Zero??
>
>Roy G
>
....and 'anti-alias' OFF ???

Nash <lontche@yahoo.com> wrote:

<snip>
> So, my question is: how do I fill *every* #$% pixel of the selected
> area with *exactly* the same color, and am I doing something wrong ?

I just can't be able to get a clear picture of what you try to do, or why
you have to find an easier way to make thing more complicate <bg>. So, I
assume that the MAP (line and text) is BLACK (or some darker color), then

1. Scan the map, if it has lot of busy background then scan in color instead
of B&W so you can be able to separate the LINE and background easier. IOW,
I can't tell which you have at your end to be able to give some specific
method.

2. Now, instead of trying to make thing more difficult, I would pay more
attention to the LINE and use tool's to select the LINE (map), or try not to
pay any attention to the background.

- If the LINE (map) is not dark enough then you can use Dodge/Burn to
Darken the line, and Brighten the background.

- You can use Level to Darken the MAP and Brighten the background.

- Then you can use tool to select COLOR which may inclue some background
which you should be able to clean up later (easily).

a. Paste the MAP selection to other canvas

b. or Invert the selection then DEL the background and you have a
transparency MAP

That's it! you should have a clean transparency MAP which you can paste to
any screen, replacing background to anything (solid color of photo) you
want.

tacit <tacitr@aol.com> wrote:

> In article
> <b0eb11e0-1dbf-4759-a087-e723053b095d@k2g2000hse.googlegroups.com>,
> Nash <lontche@yahoo.com> wrote:
>
> > So, i used a polygonal lasso tool to very precisely select the image
> > area, inverted the selection to select its rim and tried applying the
> > fill tool to fill the rim area with white (RGB: 255, 255, 255).
> > Blending mode Normal, Opacity 100%. The image is displayed on the
> > Background layer, with Opacity and Fill both at 100%. According to
> > , various books and tutorials that should fill every pixel of the
> > selected area with the selected color, right?
>
> No.
>
> Photoshop does not have a fill tool. The Paint Bucket is not a fill tool
> the way it is in some programs. The Paint Bucket is a combination of the
> Magic Wand and a fill tool; it looks at the color of the pixel you
> clicked on, then spreads out in all directions, filling as it goes,
> until it hits pixels with a different color.
>
> You do not use the Paint Bucket to fill a selection with color. That is
> not what it is intended for. In fact, you do not use any tool to do
> that. Instead, just hold down the Option (PC: Alt) key on your keyboard
> and press the Delete or Backspace key. That's how you fill a selection
> with color in Photoshop.

Or choose 'Edit - Fill'. Photoshop doesn't have a fill tool, but it does
have a fill menu.


--
Johan W. Elzenga johan<<at>>johanfoto.nl
Editor / Photographer http://www.johanfoto.com

To try to kind of answer all at once:

I really meant Edit -> Fill, not Fill tool. My bad.

Selection's Feather is set to 0, Anti-aliasing is off.

Edit -> Fill as far as I can see doesn't have a Tolerance setting, but
I guess you misunderstood me because of my mistake.

I haven't tried Clear, but I will.

Thanks all

Nash