# Οδηγός του Cheese

Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share the fun with others.

2007-2009
daniel g. siegel (dgsiegel@gnome.org)
Jaap A. Haitsma (jaap@haitsma.org)
Filippo Argiolas (fargiolas@gnome.org)
Felix Kaser (f.kaser@gmx.net)

Σας παρέχεται άδεια να αντιγράψετε, διανείμετε ή/και να τροποποιήσετε το υπάρχον κείμενο υπό τους όρους της άδειας GNU Free Documentation License (GFDL), έκδοση 1.1, ή οποιαδήποτε μεταγενέστερη έκδοση που να έχει εκδοθεί από το Free Software Foundation υπό τις προϋποθέσεις no Invariant Sections, no Front-Cover Texts, και no Back-Cover Texts. Μπορείτε να βρείτε αντίγραφο του GFDL σε αυτό το σύνδεσμο ή στο αρχείο COPYING-DOCS όπως διανέμεται με αυτή την τεκμηρίωση.

Αυτή η τεκμηρίωση είναι μέρος της συλλογής τεκμηρίωσης του GNOME όπως διανέμεται υπό τους όρους του GFDL. Εάν επιθυμείτε να διανείμετε αυτή την τεκμηρίωση ξεχωριστά από την συλλογή, μπορείτε να το κάνετε εάν η τεκμηρίωση συνοδεύεται από αντίγραφο της άδειας (GFDL) όπως περιγράφεται στον τομέα 6 της άδειας.

Πολλά από τα ονόματα που χρησιμοποιούνται από εταιρίες για να ξεχωρίσουν τα προϊόντα και τις υπηρεσίες είναι σήματα κατατεθέν. Όπου αυτά τα ονόματα εμφανίζονται στην τεκμηρίωση GNOME, και τα μέλη της ομάδας τεκμηρίωσης GNOME έχουν γνώση αυτών, τότε αυτά αναγράφονται με κεφαλαίους χαρακτήρες ή με αρχικούς κεφαλαίους χαρακτήρες.

ΤΟ ΈΓΓΡΑΦΟ ΚΑΙ ΤΡΟΠΟΠΟΙΗΜΕΝΕΣ ΕΚΔΟΣΕΙΣ ΑΥΤΟΥ ΠΑΡΕΧΟΝΤΑΙ ΥΠΟ ΤΟΥΣ ΟΡΟΥΣ ΤΗΣ ΑΔΕΙΑΣ GNU FREE DOCUMENTATION ΜΕ ΤΗΝ ΠΕΡΑΙΤΕΡΩ ΔΙΕΥΚΡΙΝΙΣΗ ΟΤΙ:

1. Η ΤΕΚΜΗΡΙΩΣΗ ΑΥΤΗ ΠΑΡΕΧΕΤΑΙ "ΩΣ ΕΧΕΙ", ΧΩΡΙΣ ΚΑΜΙΑ ΕΓΓΥΗΣΗ ΟΤΙ ΜΠΟΡΕΙ ΝΑ ΕΞΥΠΗΡΕΤΗΣΕΙ ΚΑΠΟΙΟ ΣΚΟΠΟ Η ΟΤΙ ΕΙΝΑΙ ΧΩΡΙΣ ΣΦΑΛΜΑ. ΟΛΟΚΛΗΡΗ Η ΕΥΘΥΝΗ ΓΙΑ ΤΗΝ ΠΟΙΟΤΗΤΑ, ΑΚΡΙΒΕΙΑ ΚΑΙ ΛΕΙΤΟΥΡΓΙΚΟΤΗΤΑ ΤΗΣ ΤΕΚΜΗΡΙΩΣΗΣ Ή ΠΑΡΑΛΛΑΓΩΝ ΑΥΤΗΣ ΑΝΗΚΕΙ ΣΕ ΕΣΑΣ. ΕΑΝ Η ΤΕΚΜΗΡΙΩΣΗ ΑΥΤΗ Ή ΠΑΡΑΛΛΑΓΗ ΑΥΤΗΣ ΕΙΝΑΙ ΛΑΘΟΣ ΚΑΤΑ ΚΑΠΟΙΟ ΤΡΟΠΟ ΕΣΕΙΣ ΑΝΑΛΑΜΒΑΝΕΤΕ ΤΗΝ ΕΥΘΥΝΗ ΤΗΣ ΔΙΟΡΘΩΣΗΣ. Η ΑΠΑΛΛΑΓΗ ΕΥΘΥΝΗΣ ΠΟΥ ΣΥΝΟΔΕΥΕΙ ΑΥΤΗ ΤΗΝ ΤΕΚΜΗΡΙΩΣΗ ΕΙΝΑΙ ΑΝΑΠΟΣΠΑΣΤΟ ΚΟΜΜΑΤΙ ΑΥΤΗΣ. ΚΑΜΙΑ ΧΡΗΣΗ ΤΗΣ ΤΕΚΜΗΡΙΩΣΗΣ Ή ΠΑΡΑΛΛΑΓΩΝ ΑΥΤΗΣ ΔΕΝ ΕΠΙΤΡΕΠΕΤΑΙ ΠΑΡΑ ΜΟΝΟ ΕΑΝ ΣΥΝΟΔΕΥΕΤΑΙ ΑΠΟ ΤΗΝ ΑΠΑΛΛΑΓΗ ΕΥΘΥΝΗΣ.

2. ΣΕ ΚΑΜΙΑ ΠΕΡΙΠΤΩΣΗ ΚΑΙ ΥΠΟ ΚΑΜΙΑ ΝΟΜΙΚΗ ΣΥΝΘΗΚΗ, ΕΙΤΕ ΜΕΣΩ ΣΥΜΒΟΛΑΙΩΝ Ή ΑΛΛΙΩΣ, ΔΕΝ ΕΥΘΥΝΟΝΤΑΙ Ο ΣΥΓΓΡΑΦΕΑΣ, Ο ΔΙΑΝΟΜΕΑΣ, Η ΑΛΛΟΣ ΣΥΝΥΠΕΥΘΥΝΟΣ ΓΙΑ ΤΗΝ ΣΥΓΓΡΑΦΗ ΤΗΣ ΤΕΚΜΗΡΙΩΣΗΣ, ΓΙΑ ΕΜΜΕΣΕΣ Η ΑΜΕΣΕΣ, ΤΥΧΑΙΕΣ Ή ΜΗ ΖΗΜΙΕΣ ΠΑΝΤΩΣ ΦΥΣΕΩΣ ΠΟΥ ΠΡΟΕΡΧΟΝΤΑΙ ΑΠΟ ΤΗΝ ΧΡΗΣΗ ΤΗΣ ΤΕΚΜΗΡΙΩΣΗΣ ΚΑΙ/Ή ΠΑΡΑΛΛΑΓΩΝ ΑΥΤΗΣ ΑΚΟΜΑ ΚΑΙ ΕΑΝ ΕΧΕΙ ΥΠΑΡΞΕΙ ΠΡΟΕΙΔΟΠΟΙΗΣΗ ΓΙΑ ΤΗΝ ΠΙΘΑΝΟΤΗΤΑ ΥΠΑΡΞΗΣ ΤΕΤΟΙΩΝ ΖΗΜΙΩΝ.

Joshua
Henderson
joshhendo@gmail.com
Jaap
Haitsma
jaap@haitsma.org
Felix
Kaser
f.kaser@gmx.net
0.1
2007-12-04

Jaap A. Haitsma jaap@haitsma.org

Jaap A. Haitsma

0.2
2008-01-12

Jaap A. Haitsma jaap@haitsma.org

Joshua Henderson joshhendo@gmail.com

Jaap A. Haitsma

0.3
2008-08-20

Jaap A. Haitsma jaap@haitsma.org

Joshua Henderson joshhendo@gmail.com

Jaap A. Haitsma

0.4
15-07-2009

Jaap A. Haitsma jaap@haitsma.org

Joshua Henderson joshhendo@gmail.com

Felix Kaser f.kaser@gmx.net

Jaap A. Haitsma

0.5
2009-09-14

Felix Kaser f.kaser@gmx.net

Felix Kaser

## Ανάδραση

To report a bug or make a suggestion regarding the Cheese application or this manual, follow the directions in the Cheese project page.

## Εισαγωγή

Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share the fun with others.

## Χρήση

The main screen of Cheese supports two different layouts at the moment. The default looks like the screenshot below, it has the preview image centered and the thumbnail slideshow below.

### Στιγμιότυπο του Cheese

Especially for Cheese-users with small displays, like the ones in netbooks, we have designed another view. It is more horizontally aligned, in order to fit better on small widescreen displays. The wide-view is shown in the screenshot below.

### Cheese wide screenshot

Cheese uses the photo mode by defaults, but you can change this to use the video or burst mode if desired.

### Εφέ

To apply effects to the input of your webcam, click the button labelled Effects. When you then go to the effects window, you will see a window similar to the image below.

#### Στιγμιότυπο εφέ του Cheese

You can apply some really cool effects to your photos too! Just choose from the several different effects available and click its corresponding button to apply it to your photo. Selecting multiple effects will apply all the effects to your image. For example, if you select Hulk and Vertical Flip, the input from the webcam will be altered to have a green shade and be upside down. To disable all effects, just click on the No Effect button.

To return to the preview of your webcam, just push the button labelled Effects again. This will toggle the Effects menu and bring you back to the normal view.

### Λειτουργία Φωτογραφίας

Photo mode is the default mode for Cheese. When not in photo mode, click the button that shows the icon of a single photo or select it from the menu: Cheese Photo to change to photo mode. Photo mode will take a single photo every time the button labelled Take a photo or the Spacebar key is pressed, and will save to disk.

### Λειτουργία Βίντεο

Video mode is a mode that allows you to take short videos using the webcam. When not in video mode, click the button that shows the icon of a film roll or select it from the menu: Cheese Video to change to video mode. Video mode will start recording a video every time the button labelled Start Recording or the Spacebar is pressed. The video will stop recording and save to disk when the button labelled Stop Recording or the Spacebar is pressed.

The video mode does not look much different from the photo mode, except that the button labelled Take a photo will say Start Recording or Stop Recording, and the button with the film roll icon is pushed in, whereas the other mode buttons (photo and burst) are not.

### Burst Mode

In burst mode you can take more pictures in a row. It works exactly like the photo mode, except that it takes a series of pictures. When you are not in burst mode, click the button that shows the icon of several pictures in a row or select it from the menu: Cheese Burst to change to burst mode. Burst mode will start to take a series of pictures with an interval of some seconds in between photos when the button labelled Take Multiple Photos or the Spacebar key is pressed. The delay and amount of pictures to take can be set in the preferences dialog. For more information please see .

All modes can be used in fullscreen. To do this, click the Cheese Fullscreen menu to enter fullscreen mode, or press the F11 key. To exit fullscreen mode, press the Esc or the F11 keys.

#### Cheese fullscreen screenshot

## Δουλεύοντας με φωτογραφίες και βίντεο

### Λήψη φωτογραφίας

To take a photo with Cheese, be sure to be in the “Photo” mode.

It's easy to take photos with special effects. Just click the button labelled Effects, and click on the effects desired as described in . You should now have the effects that you chose applied to the webcam input. Press the effects button again to get back to the normal view.

To take a photo, press the button labelled Take a photo or press the spacebar key. Alternatively, you can also use the webcam capture button, if your webcam has one. You will then see Cheese count down from 3 or instantly take the photo, depending on your settings. When the photo is taken, your entire screen will flash white, and the photo that was just taken will appear in the photo stream at the bottom of the program's window. To abort the countdown you can use the Esc key.

### Recording a video

To record a video in Cheese, make sure that the Video button has been pressed.

To start recording a video, press the button labelled Start Recording or press the Spacebar key. Alternatively, you can also use the webcam capture button, if your webcam has one. To stop recording just press the same button, now labelled Stop Recording, and the recording will stop and the video saved.

If your video appears to be jerky or has a low frame rate (only updating the picture every few seconds), it does not mean that the recording has a similar frame rate. In many cases, the recorded file will have a better frame rate.

### Taking a series of pictures in burst mode

To take more than one picture over some time you can use the burst mode. Burst mode can be set up in the preferences dialog where you can also set the amount of pictures you want to take and the delay in seconds between them. You can find more information about that in .

To start the burst mode, press the button labelled Take Multiple Photos or press the Spacebar key. Alternatively, you can also use the webcam capture button, if your webcam has one. To stop the burst capture you can use the Esc key.

## Setting up Cheese

### The preferences dialog

The preferences dialog allows you to set up some webcam specific parameters and parameters specific to the burst mode. If you have more than one webcam or video device attached to your system, the preferences dialog allows you to choose which one you would like to use for Cheese and what resolution the image should have. Use the sliders to play around with the brightness, contrast, saturation and hue values to find the best for your webcam.

#### Cheese preferences screenshot

The parameters for the burst mode can be set in the preferences dialog as well. You only have to adjust the values for the number of photos you wish to take and the delay in seconds between each picture taken.

### GConf settings

It's possible to define where Cheese stores the captured media (photos and videos). These settings are stored in GConf. You can change the settings with the `gconf-editor`, application. There you have to select /apps/cheese in the tree on the left. Then you can set the video_path and photo_path to the location you prefer. There you can also set other parameters for Cheese, but you should use the preferences dialog for a controlled access.

Attention: Be careful while using GConf to change your settings! If you are not completely sure about what you are doing, you should ask someone who knows!

## Κοινή χρήση φωτογραφιών και βίντεο

### Προβολή φωτογραφίας ή βίντεο

To view a video or photo that has been taken, locate it in the photo stream and double click it. Alternatively, you can right click on it and select Open. This will then open the file in the default application for that file type.

### Αποθήκευση φωτογραφιών και βίντεο σε εναλλακτική τοποθεσία

To save a photo to an alternate place on your system where you can easily find them, find the photo or video that you wish to save in the photo stream, right click on it and select Save As from the pop-up menu. This will bring up a standard Save File dialog that will allow you to save it to a new location as well as rename it if you so wish to do.

### Διαγραφή φωτογραφίας

To delete a photo from the photo stream, locate the photo you wish to delete in the photo stream, left click on it once and press the delete button on your keyboard. Alternatively, you can right click on it and select Delete from the pop-up menu.

You will be asked if you wish to delete it from the photo stream. To confirm, press the button labelled Move to Trash.

This will move the image to the "trash", as well as remove from your photo stream. This will not remove the photo from your computer. To remove it from your system, you will need to empty your trash.

### Αποστολή φωτογραφίας με ηλεκτρονικό ταχυδρομείο

Photos can be directly emailed from Cheese. You will need to have the default mail client set up with an email account. To email a photo, locate the photo in the photo stream, right click on it and select Send by Mail.

This will open the default mail client (for example, Evolution) and a new email message will be created with the photo you selected as an attachment.

### Καθορισμός ως Φωτογραφία Λογαριασμού

To set a photo as your account photo (which can be viewed from the System Preferences About Me menu, and the login window with a list of user names with photos), locate the photo that you wish to use in Cheese, right click on it and select Set as Account Photo.

### Εξαγωγή φωτογραφίας στο F-Spot

To export a photo to F-Sport, locate the photo in your photo stream, right click on it and select Export to F-Spot. You will then be prompted by F-Spot if you wish to import the photos that are being sent to it.

Ανάλογα με την έκδοση του Cheese που χρησιμοποιείτε, το F-Spot μπορεί να σας ρωτήσει αν επιθυμείτε να εισάγει ολόκληρη τη ροή φωτογραφιών.

#### Cheese sharing screenshot

## Συχνές ερωτήσεις

### Το βίντεο είναι νωθρό/έχει αργή απόκριση. Τι μπορώ να κάνω;

You may have set "`ximagesink`" (X Window System (No Xv)) as video-output. This means that your CPU is doing all the work. Change it to "`xvimagesink`" (X Window System (X11/XShm/Xv)) in order to let your graphics card do the work.

To change this setting, run the `gstreamer-properties` command, click the Video tab and change the appropriate setting.

### Έχω Mac με iSight και κάρτα γραφικών ATI, και τα χρώματα είναι αφύσικα.

Αυτό είναι ένα πρόβλημα με την κάρτα γραφικών ATI, ωστόσο υπάρχει τρόπος επίλυσης. Αλλάξτε την έξοδο βίντεο (video-output) σε προσαρμοσμένο και εισάγετε τα παρακάτω: "`ffmpegcolorspace ! video/x-raw-yuv,format=(fourcc)YV12 ! ffmpegcolorspace ! xvimagesink`".

To change this setting, run the `gstreamer-properties` command, click the Video tab and select custom from the drop down menu.

### Η δικτυακή κάμερά μου λειτουργεί με το gstreamer, αλλά δεν δουλεύει με το Cheese. Τι συμβαίνει;

Using the `gstreamer-properties` mentioned in the above question, try changing from xvimagesink to ximagesink or vice-versa. If this still does not work, run `cheese --verbose` on the command line and copy the logging into a bug report in our bug tracker.

### Η δικτυακή κάμερά μου δουλεύει με άλλα προγράμματα όπως τα Ekiga, Camorama, αλλά όχι με το Cheese. Τι συμβαίνει;

Ελέγξτε αν η δικτυακή κάμερά σας δουλεύει όταν τη δοκιμάζετε στο `gstreamer-properties`. Αν δουλεύει εκεί, αλλά όχι στο Cheese, παρακαλούμε στείλτε μία αναφορά σφάλματος στον bug tracker μας.

### Που αποθηκεύει το Cheese τις φωτογραφίες και τα βίντεό μου;

Cheese stores your pictures in a folder called Webcam inside the XDG-Directory set for Pictures (in most distributions its ~/Pictures/Webcam). The same applies for Videos: ~/Videos/Webcam. XDG is a standard to declare default folders in your system. You can find more information about XDG here.

If the XDG-Path is not set on your System, cheese has a fallback solution: it will store both your pictures and videos in ~/.gnome2/cheese/media. This is the default directory for your media if you have an older version of Cheese.

How to set an alternate path is described in .

Προσοχή: αφήστε αυτή τη ρύθμιση κενή αν θέλετε το Cheese να χρησιμοποιεί τους προεπιλεγμένους καταλόγους.

Μπορείτε επίσης να αποθηκεύετε τις φωτογραφίες σας σε διαφορετική τοποθεσία μέσα από το Cheese. Παρακαλούμε κοιτάξτε το θέμα για περισσότερες πληροφορίες.

### Η Quickcam Express που έχω δε δουλεύει με το Cheese...

ή το gstreamer, και βλέπω σφάλματα όπως "Not enough buffers. We got 1, we want at least 2" in the Cheese output. With driver "qc-usb".

Δοκιμάστε να εκτελέσετε `qcset /dev/video0 compat=dblbuf` για να ενεργοποιηθεί η λειτουργία συμβατότητας με διπλή ενδιάμεση μνήμη (double buffer compatibility mode), στη συνέχεια επανεκκινήστε το Cheese.

### Μήνυμα λάθους "Δεν βρέθηκε κάμερα"

"When I launch Cheese, I get the message 'No Camera Found' but I have my webcam plugged into my computer".

There are many situations that can cause this, and the exact problem that is causing it needs to be isolated. If possible, try each of the following to try and get your webcam working: 1. Plug your webcam into another computer. If it works there, then it is a problem with the connection to your computer, or the operating system if it was a different one on the other computer. Check the ports on your computer (try another one) and consult support for your particular operating system. 2. See if your camera is being detected by your computer. On Linux, open up the terminal or console and type "dmesg" before you plug in your webcam. Notice the most recent entries, and then plug in your webcam. Type "dmesg" again and see if the most recent entries differ. If the message mentions a USB device being detected, and your webcam is the only USB device that has been changed, then your computer is detecting your webcam fine. If not, then test to see if the webcam is working on another computer. This may only work with USB webcams. 3. As Cheese uses the gstreamer backend, it is most likely because gstreamer is not detecting the webcam (or gstreamer has become corrupt). Please contact support for the particular operating system that you are running with as many details as possible. For Ubuntu, please use the Ubuntu Forums.

### Which cameras are supported?

Cheese uses gstreamer for video grabbing. So in principle Cheese supports any camera that works with GStreamer. That should be any camera which supports video4linux or video4linux2.

## Περί

Cheese was initially written by Daniel G. Siegel dgsiegel@gnome.org. as a Google Summer of Code project. Later, Jaap A. Haitsma jaap@haitsma.org and others joined Daniel to improve it. To find more information about Cheese, please visit the Cheese web page.

To report a bug or make a suggestion regarding this application, you can file a bug in our bug tracker.

Το πρόγραμμα αυτό διανέμεται υπό τους όρους της GNU General Public license όπως αυτή δημοσιεύεται από το Free Software Foundation, είτε της έκδοσης 2 του License, ή (κατά τη γνώμη σας) οποιασδήποτε μεταγενέστερης έκδοσης. Αντίγραφο αυτής της άδειας μπορείτε να βρείτε στο GNU site, ή στο αρχείο COPYING που περιλαμβάνεται στον πηγαίο κώδικα του προγράμματος.