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Chapter 5: Capturing Pictures from Paper, Camera, or Screen

If you have on your computer more than one TWAIN device (a scanner and
your camera, for example), first choose File➪Import➪TWAIN➪Select Source.
In the Select Source dialog box that appears, click the camera and then click
Select.

To begin the downloading process, choose File➪Import➪TWAIN➪Acquire.
Some form of dialog box, similar to the one shown in Figure 5-2, arrives on
the scene.




Figure 5-2:
Transferring
one or more
photos to
your PC with
a TWAIN-
compliant
camera ”
in this case,
an Olympus
D-560.



If you have more than one TWAIN source set up (like a scanner and a camera
on the same computer), choosing From Camera or Scanner starts up the
scanner rather than the camera. Yes, that is irritating if you use your camera
more than your scanner.

If that™s the case, choose File➪Import➪TWAIN➪Select Source to access your
camera; a small dialog box appears that shows you all your TWAIN-compliant
devices. Click the one that has a name something like your camera model
(ours was Olympus Digital Vision 3.0 33-32) and click OK. Then, choose File➪
Import➪TWAIN➪Acquire to start your camera™s download.

Alas, we can™t tell you exactly how this happens because the interface that
downloads the pictures is unique to each camera. Fortunately, most of them
are similar; they present a selection of thumbnails or preview images that
you can flip through in some manner.

If you don™t see a set of thumbnail images, you may need to hunt for a Get
Previews button or menu option.



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You see buttons or menu options that allow you to accomplish these
common camera tasks:

Download photos ” the whole enchilada: Look for a Download All,
Save All, or perhaps (as in our Olympus example) Select All command
before you can click the Download button. Downloading means that your
photos go directly to your PC™s disk drive, as files. You don™t see them in
Paint Shop Pro. You then can open them in Paint Shop Pro by choosing
File➪Open, as you can any other image file (refer to Chapter 1).
Download selected images ” the ones where your child isn™t sticking
out his tongue: Browse through the thumbnails (which are sometimes also
called previews), which you can generally do by clicking the left and right
arrows under the thumbnail image or scrolling up and down. The expo-
sure number, date, and time appear next to the image in some cameras,
and others may have an Information or Details button to display details.
When you come to a desirable photo that you want to download to your
PC, click the image you like and then look for a Save to Disk or Download
button or something similar. (You can select multiple images by holding
down Ctrl while you click.) You then can open them in Paint Shop Pro by
choosing File➪Open.
Erase the images where your child is sticking out his tongue: Browse
through the thumbnails and find the offending images. Click that image
and first try pressing Delete, and then look for a Delete, Erase, or Trash
button. Clicking this button removes the image from your camera.
Open a particular image in Paint Shop Pro: Browse through the thumb-
nails (as the preceding bullets describe) to that image. Click the image
and then look for an Open button. You can also open all images in Paint
Shop Pro if you select them all and then press Open. That choice may
use so much memory, however, that Paint Shop Pro becomes sluggish.
To save an open image to disk, refer to the instructions for saving a file
in Chapter 1.

For most makes of digital cameras, downloading images doesn™t delete them
from the camera. Erasing images, however, generally does wipe them from
the camera, which you want to do to clear out space for future photos.

Retrieving pictures with WIA
WIA serves the same function as TWAIN, but was never as popular. However,
some digital cameras only use WIA, so Paint Shop Pro supports it.

In Paint Shop Pro, choose File➪Import➪From Scanner or Camera to open
camera files by using the WIA method. Depending on your camera™s make,
the program either shows you the photos as though they resided on a hard
drive (in which case you would follow the instructions in the earlier section
“Copying pictures from mounted drives”) or presents you with some sort of
preview interface (in which case events are similar to what happens in the
earlier section “Using TWAIN to transfer photos”).
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Chapter 5: Capturing Pictures from Paper, Camera, or Screen



EXIF, stage left
Once upon a time, taking a photo was an out by examining the image™s EXIF (Exchangeable
intensely complicated process: You had to be Image File) data. EXIF data is saved as part of a
able to set a camera™s F-stops, whatever those JPEG file on most cameras, and it contains all the
were, read lighting exposures, and, um, snorkel camera™s settings at the time the photo was
the defibrillating valve. If any of those cryptic taken.
settings was set wrong, your pictures of Aunt
One other part of EXIF files is handy, even if you
Flo may have developed as blurry brown
don™t give a darn about metering patterns: It
smears.
stores the date and time the photo was taken
Fortunately, today™s digital cameras handle those and can contain optional extras, such as the
fine details automatically. Normally, this is a good artist™s name, the artist™s comments, and the
thing ” but sometimes you want to know why make of the camera that took it. Some photo
one picture looks fantastic and another photo, albums use EXIF data to help sort through thou-
taken seconds later, looks as though it were sands of stored pictures; for example, you can
taken from behind the glass of an uncleaned search through keywords stored in the EXIF
aquarium tank. The difference is usually because, comments to find a specific photo, even if you
for some reason, the camera quietly changed one don™t know the name of the file.
of its many settings.
You can edit some parts of a JPEG™s EXIF infor-
If you want to study differences in camera set- mation by choosing Image➪Image Information
tings to find out what sorts of F-stops and focal and selecting the EXIF Information tab. The
lengths create the clearest pictures, you can find editable bits are marked with asterisks.




Your last resort: The camera™s native software
If all else fails, it may be that your camera is either very old or very cranky,
and it allows you to snarf photos off it only via its custom-written interface
software. In that case, Paint Shop Pro can™t get the images for you; read your
camera™s manual™s for the directions. Sorry ™bout that. You can still save the
image from that software to your hard drive by using its File➪Save command;
then open the file in Paint Shop Pro.




Making E-Mail-Ready Photos
William™s family means well. About twice a month, they send him pictures of
his niece, Amanda. Unfortunately, the pictures are the size of billboards and
take about an hour-and-a-half to download, which prevents him from doing
anything else while he waits for the new picture to arrive.

He loves Amanda, but it™s not worth waiting 90 minutes just to see a picture
of her.


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Chances are, your friends feel the same about your pictures: They want to
see your little bubbeleh, but they want to see her quickly. Unfortunately,
scanners and digital photos, left to their own devices, give you the biggest,
the most detailed, and, above all the largest files they can possibly produce.
On the Internet, large files mean large download times ” and long waits.




Shrinking Photo Download Times
Your friends never tell you that they hate waiting four hours for a picture of
your newborn; they just force a smile and say “Those humongous photos
were lovely.” Be proactive and take these steps to condense your photos ”
and save your friendship!

1. Crop the photo so that it shows you only the important parts.
If Amanda is on the right side of the picture, there™s no sense in showing
everyone the wallpaper in the left half of the room. Cropping is ridicu-
lously easy, and we show you how to do it in Chapter 2.
2. Reduce the physical size of the photo.
Most digital cameras produce photos roughly the size of this page; the
smaller the photo, the quicker it downloads. Again, this information is in
Chapter 2.
3. Reduce the quality of the image.
It sounds horrible: Our darling Amanda, in a low-grade image? ” but the
fact is that most images can have their quality reduced by 10 or 20 per-
cent without anyone noticing a thing ” and it saves lots of download
time. We show you how to compress photos in Chapter 15.




Scanning into Paint Shop Pro
With digital cameras so cheap these days, you may wonder why anyone
would use a scanner. After all, putting a photo on a flatbed and going through
the hassle of aligning it properly is much more trouble than simply clicking
Download in your camera™s software program. Why would you bother?

For one thing, digital cameras are still a recent development. Chances are
good that you have a drawer full of old, paper photos that you want to send
to your friends. Or, maybe you have a magazine cover that you want to share
with the world. Other scanning candidates are line drawings, original art-
work, and documents that you have only in paper form. If that™s the case,
your only option is a scanner.


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Chapter 5: Capturing Pictures from Paper, Camera, or Screen

Many people are surprised to discover that scanning is a fairly involved
process. Getting an image from paper isn™t quite as simple as putting an
image on paper ” unless quality isn™t all that important.

If your PC is equipped with more than one TWAIN-based image-acquiring
device (scanners or cameras, for example), you need to tell Paint Shop Pro
which one you™re using before going through the following steps. Choose
File➪Import➪Twain➪Select Source. The Select Source dialog box appears.
Select your scanner (source) and then click Select.

In most instances, these steps scan an image from a properly installed scan-
ner that has a TWAIN interface (although your scanning software may differ):

1. Launch the scanning software that came with your scanner.
To do that, choose File➪Import➪TWAIN➪Acquire. (If your scanner uses
WIA, choose File➪Import➪Scanner or Camera.)
Or, press the Scan button on your scanner, if it has one.
Some special software designed to run your scanner should appear, and
Paint Shop Pro enters into a special TWAIN mode. (If the software doesn™t
appear, read the literature that came with your scanner and check to
make sure that your scanner is properly installed.) Because that software
depends on the scanner manufacturer, we can™t tell you many details
about it. We give you some tips, however, in the following section.
Figure 5-3 shows you the software that appears if, for example, you™re
using a Canon Multipass.




Figure 5-3:
An example
of scanning
software.
Your
software
may be
different.




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84 Part II: Prettying Up Photographs

2. Find and click the Preview button.
In Figure 5-3, for example, the Preview button is in the Preview window.
If you don™t find a button labeled Preview, look for a similar word. The
scanner starts to scan and then shows you a small preview image, as
shown in the Preview window in the figure. This preview image shows
you the entire scanning area of the scanner (the glass area in a flatbed
scanner).
3. Define the area you want to scan.
In most scanner software, you create a rectangle in the Preview area to
define the area you want to scan. (Drag from one corner of the part you
want to the opposite corner.) Usually, you can then drag this rectangle
to adjust its position or drag its sides or corners to adjust its size. If you
don™t define the scan area in this way, you may end up with an enormous
image (your scanner™s entire field of view) that you have to crop (trim)
to the area you want. (Chapter 2 shows you how to crop a photo after
it™s in Paint Shop Pro ” a vital skill that everyone should know.)
Most scanner software allows you to enlarge (zoom in on) the preview
image. Look for a magnifying glass icon, click it, and then click the
image.
4. Adjust settings that control the resolution or number of colors or that
improve the appearance of the preview picture.
Scanner software often offers important features and controls, including
whether you want color or black-and-white scanning. In the ScanWizard
software shown in Figure 5-3, the controls are in the right window. We
describe these and other useful controls in the following section.
5. Find and click the Scan button.
If you can™t find a Scan button, look for a Start or Begin button. Figure 5-3
shows you a Scan button under the Preview button. The scanner begins
to scan again. (It may take longer or shorter than it did in Step 2.)
After the scanner is done, an image appears in Paint Shop Pro. You can
now close the scanner software window or continue to scan more
images (starting with Step 2). Each image gets its own window in Paint
Shop Pro.
6. When you™re done scanning, close the TWAIN session.
If you™re using TWAIN software to run your scanner, as we suspect, Paint
Shop Pro will have put you into a special TWAIN-handling session where
you can save files but not edit them. To return to “normal” mode, choose
File➪End TWAIN Session. You return to Paint Shop Pro, where your
scanned images are waiting for you.




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Chapter 5: Capturing Pictures from Paper, Camera, or Screen


Getting the most from your
scanning software
Whatever software your PC uses to control your scanner, it undoubtedly
offers certain settings to play with. For casual scanning of images that don™t
have problems (such as underexposure), you can often ignore lots of those
settings and do all your fiddling in Paint Shop Pro. Sometimes, however, the
controls in your scanner software can improve your image in ways that Paint
Shop Pro alone can™t ” especially with moir© problems that occur when you
scan newspaper photos. (Although Paint Shop Pro has an adjustment that
removes moir© patterns, it™s not nearly as effective as fixing it at the source.
See “Forever plaid: Scanning printed images,” later in this chapter, for more
about moir©.)

You can usually adjust these settings after you do the preview. Except for res-
olution and color settings, the preview image reflects the changes without
running your scanner again.

Choosing the number of colors
To achieve the best quality possible with color photographs (and other
images that have either many colors or gradual, subtle shadings), you want
the maximum number of colors the scanner can produce. Usually, this maxi-
mum is expressed as 24-bit or 32-bit color. If your PC has disk space for the
large files this produces, scanning at this number of colors is best even if
your final application requires fewer colors.

Here are some scanner settings you may find, labeled Type or Color Depth in
the scanner software, that usually work well for the following uses:

Business or highest-quality personal use: Choose 16 million colors (24-
or 32-bit). (You can then color-reduce these images in Paint Shop Pro for
faster downloading in Web or e-mail applications; see Chapter 15.)
Casual family or business Web page illustrations or snapshots to be
sent by e-mail: Choose 256-color if it™s available, although it™s not always
offered as a scanner option. Use 16 million colors if the 256-color option
isn™t available.
Black-and-white photos, pencil drawings and sketches, or line draw-
ings with lines of varying weight: Choose 256 shades of gray, or some-
times Newsprint. Scanners typically scan these types of image by
looking for one particular color. If your drawing is all in one color of
pencil, such as green, it may not appear! Check your scanner manual for
notes on scanning grayscale (black-and-white) images or line drawings,
or avoid red, blue, or green pencils.




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Clear, original printed text with good contrast or line drawings in
dark ink or with thick lines: Choose two colors (1-bit), or line art, if it™s
available; otherwise, choose 256 shades of gray. If you have a line draw-
ing with uneven line darkness, you can sometimes turn it into good line
art by adjusting either the Line Art Threshold or Highlight/Midtone/
Shadow settings. See the section “Setting contrast and other adjust-
ments,” later in this chapter, for more information about the latter setting.

Choosing resolution
Resolution is the number of dots (or samples) per inch that your scanner
reads from the paper image. Your scanning software has a control for
resolution.

Higher resolution means that you get more detail ” more pixels ” which is
generally A Good Thing. For example, if you scan a 4-inch x 6-inch snapshot
at 300 dots per inch (dpi), you get an image of 4 — 300 (1200) pixels high and
6 — 300 pixels (1800) wide. (That™s even more pixels than most PC screens can
show at the same time.) You can always make a picture lower in resolution
(reduce its size in pixels) in Paint Shop Pro, if necessary, but you can™t add
detail that isn™t there in the first place.

Higher resolution also poses some problems. First, high resolution means
bigger files! If you™re just scanning a photo to e-mail to someone or to put on
the Web, the people viewing your photo won™t appreciate the long wait for a
large photo to download ” especially if it™s bigger than their screen! You can
reduce a photo in Paint Shop Pro, of course, but why bother if you don™t need
to? Besides, sometimes the shrinking process (also called resampling) doesn™t
give quite as good a result as if you had chosen the lower resolution in the
first place.

To judge which resolution to use, answer these questions:

“How big an image do I need?” For most Web and e-mail work, an
image 300 to 400 pixels on a side is plenty. Multiply the width or height
of the region you™re scanning (6 inches wide, for example) by the scan-
ner resolution you™re thinking of using (300 dpi, for example) to figure
out the resulting width or height in pixels (1800 pixels wide, in this
example). Select a lower resolution to get a smaller image in pixels.
“How big a file do I want?” Scanning a 4-inch x 6-inch color snapshot at
300 dpi (and 24-bit color) can give you a file as large as 6 megabytes.
Cutting the resolution in half can reduce the file size by as much as a
factor of four.
“How finely detailed does the image need to be?” With the setting at
300 dpi, you can begin to see an individual human hair placed in your
scanner.



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Chapter 5: Capturing Pictures from Paper, Camera, or Screen

You probably won™t see any changes you make to the resolution in your pre-
view image . To see the effect of resolution settings, you have to scan an
image into Paint Shop Pro (click the Scan button in your scanner software).

Setting contrast and other adjustments
Some other adjustments that are available in your scanner software can make
an enormous difference in the quality of your image. Fiddle with these after

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