Das was z.B. in einer jpg noch gesepichert ist, meistens Daten wie Kamera, Zeitpunkt usw....
hier mal ein Auszug eines Bildes von meiner HP
das bild
http://www.ki-homepage.de/components...isAdmin=&hit=1
auf der Seite
http://www.ki-homepage.de/index.php?...id=110&catid=2
hat folgende exif Daten
Contains Exchangeable Image File Format (EXIF) Information
Main Image Information
Make (Manufacturer)
Canon
Model
Canon DIGITAL IXUS v2
Orientation
No Rotation, No Flip
(Row 0 is at the visual top of the image,
and column 0 is the visual left-hand side)
X Resolution 180/1 (180) pixels per 'Resolution Unit'
Y Resolution 180/1 (180) pixels per 'Resolution Unit'
Resolution Unit
Inches
Date and Time 2005:01:30 13:43:19 (Format: YYYY:MM:DD HH:mm:SS)
YCbCr Positioning
Chrominance components Centred in relation to luminance components
EXIF Image File Directory (IFD) contents
Exposure Time 1/640 (0.0015625) seconds
Aperture F Number 100/10 (10)
Exif Version
0220
Date and Time of Original
2005:01:30 13:43:19
Date and Time when Digitized
2005:01:30 13:43:19
Components Configuration
Component 1: Y (Luminance)
Component 2: Cb (Chroma minus Blue)
Component 3: Cr (Chroma minus Red)
Component 4: Does not exist
Compressed Bits Per Pixel 3/1 (3) bits
APEX Shutter Speed Value (Tv) 298/32 (9.3125)
APEX Aperture Value (Av) 435412/65536 (6.6438598632812)
APEX Exposure Bias Value (Exposure Compensation) 0/3 (0) EV
APEX Maximum Aperture Value 194698/65536 (2.9708557128906)
Metering Mode
Pattern
Flash
Flash did not fire, compulsory flash suppression mode
FocalLength 346/32 (10.8125) mm
User Comment
FlashPix Version
0100
Colour Space
sRGB
Pixel X Dimension 800 pixels
Pixel Y Dimension 600 pixels
Focal Plane X Resolution 2500000/206 (12135.922330097) pixels per 'Focal Plane Resolution Unit'
Focal Plane Y Resolution 1875000/155 (12096.774193548) pixels per 'Focal Plane Resolution Unit'
Focal Plane Resolution Unit
Inches
Sensing Method
One-chip colour area sensor
File Source
Digital Still Camera
Special Processing (Custom Rendered)
Normal process
Exposure Mode
Auto exposure
White Balance
Auto white balance
Digital Zoom Ratio 1600/1024 (1.5625) ( Zero = Digital Zoom Not Used )
Scene Capture Type
Standard
Maker Note Contents
Makernote Coding: Canon
Camera Settings 1
Macro Mode: Normal ( Not Macro )
Self timer not used
Quality: Fine
Flash Mode: Flash Not Fired
Continuous drive mode: Single Frame or Timer Mode
Unknown Setting (6), value: 0
Focus Mode: Single
Unknown Setting (8), value: 0
Unknown Setting (9), value: 1
Image Size: Large
Easy shooting Mode: Manual
Digital Zoom: Unknown Value (3)
Contrast: Normal
Saturation: Normal
Sharpness: Normal
ISO Speed: ISO 50
Metering Mode: Evaluative
Focus Type: Auto
Auto Focus Point Selected: Auto Selected
Exposure Mode: Easy Shooting (See Easy Shooting Mode)
Unknown Setting (21), value: 65535
Unknown Setting (22), value: 65535
Maximum Focal Length of Lens: 10.8125mm
Minimum Focal Length of Lens: 5.40625mm
Unknown Setting (26), value: 128
Unknown Setting (27), value: 213
Flash Activity: Unknown Value (65535)
Unknown Setting (30), value: 0
Unknown Setting (31), value: 0
Focus Mode: Focus Mode: Single
Unknown Setting (33), value: 0
Unknown Setting (34), value: 65535
Unknown Setting (35), value: 100
Unknown Setting (36), value: 1024
Unknown Setting (37), value: 1600
Unknown Setting (38), value: 0
Unknown Setting (39), value: 0
Unknown Setting (40), value: 0
Unknown Setting (41), value: 0
Unknown Setting (42), value: 32767
Unknown Tag #2 2, 346, 330, 247
Unknown Tag #3 0, 0, 0, 0
Camera Settings 2
Unknown Setting (1), value: 0
Unknown Setting (2), value: 128
Unknown Setting (3), value: 378
Unknown Setting (4), value: 213
Unknown Setting (5), value: 298
Unknown Setting (6), value: 0
White Balance: Auto
Unknown Setting (8), value: 1
Sequence Number in a continuous burst : 1
Unknown Setting (10), value: 4
Unknown Setting (11), value: 0
Unknown Setting (12), value: 0
Unknown Setting (13), value: 0
Number of Focus Points Available: 3
Left Focus Point Used
Centre Focus Point Used
Right Focus Point Used
Flash Bias: 0 EV
Unknown Setting (16), value: 0
Unknown Setting (17), value: 0
Unknown Setting (18), value: 0
Subject distance: 20319 (units either mm or cm)
Unknown Setting (20), value: 0
Unknown Setting (21), value: 213
Unknown Setting (22), value: 293
Unknown Setting (23), value: 0
Unknown Setting (24), value: 0
Unknown Setting (25), value: 0
Unknown Setting (26), value: 250
Unknown Setting (27), value: 0
Unknown Tag #0 0, 0, 0, 0
Image Type
IMG:DIGITAL IXUS v2 JPEG
Firmware Version
Firmware Version 1.00
Image Number 1292925
Owner Name
Christian Reiter
Unknown Tag #16 18219008
Unknown Tag #13 30, 3, 122, 122, 118, 0, 0, 0, 0, 910, 0, 74, 0, 0, 0
Interoperability Image File Directory (IFD) contents
Interoperability Index
R98
Interoperability Version
0100
Related Image File Width 1600 pixels
Related Image File Length 1200 pixels
Thumbnail Information
Compression
Thumbnail compressed with JPEG compression
X Resolution 180/1 (180) pixels per 'Resolution Unit'
Y Resolution 180/1 (180) pixels per 'Resolution Unit'
Resolution Unit
Inches
Exif Thumbnail (JPEG Interchange Format)
Exif Thumbnail Length (JPEG Interchange Format Length) 5545 bytes