Scan? Why Should I Read This?

Yes, everyone thinks they can scan. I’ve often thought that, especially as he began to get a picture of your mail, and in that time I think of thousands of things, including nonsense. Because it is quite long, if the photos are several megabytes. And all this waiting for a photo that could arrive in a split second … So, not bad though to read it. Here you will learn some specifics about the graphical formats that every person should know. Not only for the scan, and even routine work on the computer.

Scanning – simple and complex

Before explanations how it scans very little theory.

Types of graphic formats

Graphic formats are vector and raster. The difference will become clear if you explain how it was described a geometric shape in one and in the other case.

In vector formats section describes the shape like this:

“Straight line connecting points with coordinate AB and YZ”

Circle described by the center coordinates and radius etc.

In the bitmap and stretch and circle and other figures would be described more wasteful:

“Point at AB joins the point at CD, which joins the point at EF; which joins the point at GH; ..and … Etc. to ….. which is joined to a point YZ. “

Ie Each item is described in itself.

Not to mention that if color except the coordinates for each point there will be a description of what color it is.

For this reason, some of raster graphics file formats are compressed. Ie where there are several identical items are not described themselves and figuratively described as “follow the 40 pieces of blue dots,” not “follows the blue dot, then it is another blue dot, then it is another blue point ….. so 40 … after that another blue dot …. “

This compression becomes different. Him in certain cases may lose certain elements and quality deteriorate more or less.

Scanning occurs usually bitmap that needs to be saved to a file. This is important to know in what case what format should be used. Otherwise, you or the quality is not good, or files to get huge … which does especially for the Internet is not serious … I do not believe you hate to wait for sending or receiving a 12 MB ​​file that could be and only 120 kB … example. Even more annoying is if you pay your traffic and this is reflected in his pocket.

Resolution

Furthermore, the bitmap has another important indicator – a resolution that is most commonly measured in dots per inch or dpi (dots per inch).

Purpose of the scan

Graphics usually have a definite purpose – some are scanned to put on the WEB-site (ie, be seen on a monitor), etc. to be printed on a dot matrix printer, the third to be printed on a laser printer, fourth – in prepress for offset printing.

There are various raster image file formats. My advice is, if there are any specific additional requirements to use only these four graphic form – .JPG, .GIF, .TIFF (.TIF) and .BMP.

Colours

Graphs can be mainly divided into colored gray halftone black and white. There is one parameter in the choice of file format is important – whether colored spots are iridescent tones (semitones) – these are example photos or just regular colored spots – these are mostly pictures of cartoons trademarks and others.

Scan

Each scanner allows scanning to determine what will be the resolution, while the record of the file to determine what will be its format.

After all this theory turns out that it is desirable to observe a few simple but very valuable things.

1. Be scanned at a resolution no greater than the resolution of the device that will reproduce the image that most often means something on the order of:

  • Monitor or other display – 72-180 dpi;
  • Matrix printer – 180-360 dpi;
  • Inkjet printer – 300-600 dpi;
  • Laser Printer – 300-600 dpi;
  • Offset printing and other professional applications – over 1200 dpi.

2 If you are further processed in black and white or gray halftone images at appropriate is to scan the same color – that can be used much more effects, more reliable picture, and only after processing to be converted to black and white or gray.

3 For people who have no experience in the balance of brightness, contrast, color, it is best to use automatic features of this program – the menu function is usually called Auto Balance, Auto Equalize, Auto Color – terms used vary Programme.

4 It should save the file in which to choose the file format as follows:

  • if the image is prepress or professional needs – the format is desirable to be .TIFF (.TIF). In this format remain absolutely all the features of the graph and allows fully complete further processing; However, files are often given huge – can be more than 10 MB !!! ;
  • if the image is a color image – the format is JPG;
  • if the image is black and white photo – format is JPG;
  • if the image is black and white drawing without undertones – the format is GIF. If you have thereby no loss in quality – BMP, but then conveniently compressed with a compression program, for example WinRAR, WinZIP, ARJ or another… to take up less space, especially if you will be sent by e. mail;
  • if the image is in color (or gray with undertones) but with large areas of uniform color equal (uniform color spots) – for example drawings for animation, some illustrations, etc. – Format is GIF.

Hardly a layman will need to scan another “freak” graphics …

5 Some tips for greater speed of the scan itself:

  • As is less than the resolution, the more rapid is the scan;
  • All drivers for scanners allow you to scan the first very rough area (preview), then to be able to fence only what is really needed to scan …. This method is faster, though in two stages, in this example, to scan the entire A4 and then cut what you need …. and might not get memory in such an operation – in the computer memory stays uncompressed image;
  • In black and white mode is scanned much more quickly than in color or grayscale.
  • Most often at home are scanned color photographs amateur 9 of 12 centimeters – the optimal mode for them is 180 dpi, color, format JPG …

Main advantages of the different formats that make us choose among them:

  • The main advantage of JPG format – can deliberately its quality deteriorates, until a deterioration is visible – it is possible to make very small files …
  • The main advantage of the GIF format – for the record can be set transparent color, ie if then superimpose two images, transparent color will not be seen – there will see the image below ….
  • The main advantage of TIF format – fully retains all features of the graphical image. Much the same applies to BMP.

Scanning programs

Can be scanned with many programs, including Word.

I have met people who try to scan with antivirus software. Well, of course, failed. But may have an antivirus program that allows ;-). As there are keyboards with “Any key”.

Each program has a specific purpose and desirable to scan programs for viewing and processing of images.

As for viewing images recommend all free widget IrfanView, can quickly and comfortably can and scan it.

General features

The principle is that you must first select the appropriate scanner – IrfanView is in the menu

File / Select TWAIN source

Then, scanning by

File / Acquire

The scanned file is edited (if necessary), and then recorded.

Another option (probably a little better because it implies more editing capabilities) is to use a program that go together with the scanner and the scanner for each model is different. For this reason, this option will not stop.

Macromedia Fireworks

You could say that most scanning using Macromedia Fireworks. I will not advertise it unnecessary, use it as it is directly related to my work and my most familiar. But it is sufficient for my needs.

In this case, explain it as Prammer. In practice, it is very similar to scanning even FhotoShop or Corel Photo Paint or for any other similar program used by professionals, graphic designers.

Pashtiya almost way can be scanned and if you like with Word … but not everything you can do there after insertion of the image so – avoid this option. Unless of course, you decide that this is the most convenient way for you.

1 The first job is to choose a scanner driver.

This is usually enough to make the first scan with the given program, then she already knows itself. But sometimes you have to do it again. Then she can be passed directly to the second step until one day at the start of the second step refuses to launch scanner driver. This first step should be done each time, for example if you both driver for web-camera, or another scanner.

Fireworks for the command is

File / Scan / Twain Select

Twain is one type of drivers used for scanners, cameras and other similar devices. This word often occurs in scanning and not bad to remember.

Other programs can be:

File / Acquire Image / Select Source

or any other.

Either way, these programs run driver scanner, which is different for different scanners and it is determined resolution, colors, etc. For some scanners this happens automatically, by asking whether to scan photos, text or other images.

In recent versions of Word do is

Insert / Picture / From Scanner or Camera

then entitled to choose the driver if it is not already made ​​this choice from the options of Word. Once elected, I will not ask more awkward questions. If you need to insert images from a camera, you have to change it again from the options in Word.

2 Scan.

Scanning of FireWorks is almost the same place:

File / Scan / Twain Acquire

In this run driver scanner (if not start, return to the first step or restart the computer before it). As I said, it already depends on the model of the scanner can not say without knowing what model scanner is what will happen, what will start and how it will look.

About what parameters should be selected through a scanner driver, I hope you have already been on the front clarify texts.

In some programs the scanner driver can not be started with the command

File / Acquire Image / Acquire

or

Insert / Picture / From Scanner or Camera (as in Word), etc …

(this “Acquire” in English means “acquire, mastering” but I translate it as “scan” …. cause in this case and in all programs exactly that means … That if you need to scan with unknown program, or seek “Acquire”, or “Scan”, or “Twain”. Unless one of these three words, you probably can not be used directly with the scanner. most antivirus programs will definitely not;-)

It scans from the driver itself – widget that manages specific scanner model. In this scanned image is inserted in the program for further processing.

Sometimes, depending on certain parameters after inserting another image scanner driver remains at the forefront acting. More precisely, waiting to be scanned again. This facilitates scanning more pictures, but do not abuse – Scan most 5-10 photos and close it, because if you insert multiple images are more likely to “crash” a program due to lack of memory as uncompressed images stay in memory. And you will lose scanned so far by “greed”-).

3 Follows the image processing.

The simplest treatment involves cutting this scan you want to stay and optimize file size. So I prefer to use Fireworks, because this program is one of the few who make such optimization.

Means for scanning will necessarily need two windows:

Tools – usually located to the left of the main window of the program

and

Optimize – this is usually second hand from top to bottom right (can be hidden behind the other in the same place, but you can show him choose the name …).

If you do not see those two windows, you can display the menu of the program itself Windows (top right of its window), where you “check it” and appear “daw” to their names. You’ll find them in the drop down Windows.

From the Tools window will use when scanning mostly three instrumentcheta left one under another: Pointer Tool – arrow (selection of an object), Marquee Tool – plaid box (for selecting, selection, marking (call it as you have used) of section image) and the crop Tool – a rombche as candy crossed with a diagonal line (this is a “crop” -vane – cutting the excess from the picture). As you hover over any of them should occur English names.

To reiterate – these tools are not found in the trunk of your car or light in the basement and left of the main window of the program ….;-)

From the Optimize window will be used mostly dropdown menu Settings – it will most often choose JPEG – Smaller File – as probably scan mostly photos, suitable for sending over the Internet – it keeps the visual quality in a much smaller file size, therefore more easily and quickly send e-mail or messenger….

If you wear a file to print a digital photo as a picture, better to drop the JPEG – Better Quality – there will be better quality when printed with a color printer. Or if you want to print it on your color printer, just use it. But if you want truly photographic quality, you can buy photographic paper and addendum to the printer if the printer allows a head that fits instead of black and three colors to add two more.

After scanning will most often use the tools of the tool Tools for cutting excess “garbage” Crop Tool (third) – which is like candy. Take it with the mouse, highlight it what you want to keep – you can move the sliders which are formed using them for fencing as you like. As you like it – Tap twice quickly marked and it only remains.

If you scan multiple photos at once aggregate to separate them using a second tool Marquee Tool – plaid box and the following sequence of actions:
click the tool with the mouse;

circling one picture or part of it you want to be a separate file;

Edit / Copy

File / New / OK (do not try here to determine the size, it is automatically set by the program, right click OK)

Edit / Paste

optimization pass in the box Optimize, even if you’ve done the whole aggregate scanned image from several pictures.

DO NOT FORGET TO DO BEFORE JPEG optimization to save the file !!!

It is made from window Optimize …

4 Save the file

I guess here you perseverate that, for the most graphics programs JPEG format is not their own records and is not a Save or Save As, and menu

File / Export

and from then on you is clear – choose where to save the file and a name and save it … Common mistake my impression is that you pay attention to where you save and then start as a tarseneeee … so choose yourself where to recorded file.

A principled advice on recording files – do not use Bulgarian letters filename – will create problems, especially if one looks at them on a computer with an older operating system or some special program cyrillized No problem … is the name of the Bulgarian but in Latin characters.

And another tip – if you go now to save scanned image, while export name extension is the default GIF, ie there filename writes a marked

Untitled-1.gif

So you did not make optimization for JPEG and you will get a big size GIF file …. is not much, but sometimes two or more times larger file … then just give up exports (record) doing optimization and only then return to save it …

If you made a JPEG optimization name that will offer the program is a marked

Untitled-1.jpg

After exporting the file already have it on the disc. If you want, you can open an explorer and see if it is where you saved (if you still remember where 😉 and how big.

This is not shocking when you go to close the window of the file or the entire program, and she goes to tell you we’re not saved and if you want to record – no sense of such a recording, because the program writes it to a format PNG, which also happens to transfer and browsing, but because there are lots of extras, makes large file size (not back, it we have not studied ;-).

Същите файлове тази програма прави, ако не ги записвате Export, а със Save или със Save As. Та няма смисъл от това, ако не се занимавате професионално с програмата.

Ами май това е напълно достатъчно…

p.s.“Кликвате” е различно от “Клеквате”… Да не ви пита някой що стоите клекнали край скенера… 😉