Exif winxp

[rpr]

Kādam ir nojausma kādā enkodingā tiek glabāti exif dati, ja es bildei pielieku autoru/aprakstu caur properties?

[briedis]

kādā enkodingā? Binārā moš? :) Ir tak php funkcijas, kas var izvilkt exif datus...

Rekur exif specifikācija: http://exif.org/Exif2-2.PDF domāju, ka šeit noteikti var rast atbildi.

Edited December 30, 2010 by briedis

[rpr]

tad jau varēji pats palasīt, ja jau tik pārliecināts esi. nav tur par winxp bloku nekas rakstīts.

[bubu]

Foruma tēma - "Vispārējas tēmas par PHP vai ar to saistītām lietām". Exif ir pilnīgi nesaistīta lieta ar php. Lūdzu turpmāk izvēlies forumu vairāk pa tēmai.

 

Un vispār tur ir viss par komentāru/autoru exif lauku uzrakstīts. Lasīt tikai vajag mācēt:

22.lpp:

ImageDescription

A character string giving the title of the image. It may be a comment such as "1988 company picnic" or the like.

Two-byte character codes cannot be used. When a 2-byte code is necessary, the Exif Private tag UserComment is

to be used.

Tag = 270 (10E.H)

Type = ASCII

Count = Any

Default = none

 

12.lpp:

2 = ASCII An 8-bit byte containing one 7-bit ASCII code. The final byte is terminated with NULL.

 

28.lpp:

UserComment

A tag for Exif users to write keywords or comments on the image besides those in ImageDescription, and without

the character code limitations of the ImageDescription tag.

Tag = 37510 (9286.H)

Type = UNDEFINED

Count = Any

Default = none

The character code used in the UserComment tag is identified based on an ID code in a fixed 8-byte area at the

start of the tag data area. The unused portion of the area is padded with NULL ("00.H"). ID codes are assigned by

means of registration. The designation method and references for each character code are given in Table 6.

Īsāk sakot - skaties Table 6. 28.lpp. Un sīkākām detaļām http://lmgtfy.com/?q=exif+usercomment+encoding

 

23.lpp:

23.lpp.

Artist

This tag records the name of the camera owner, photographer or image creator. The detailed format is not specified,

but it is recommended that the information be written as in the example below for ease of Interoperability. When the

field is left blank, it is treated as unknown.

Ex.) "Camera owner, John Smith; Photographer, Michael Brown; Image creator, Ken James"

Tag = 315 (13Bh)

Type = ASCII

Count = Any

Default = none

 

Un parasti Windows'am (NT) visi iekšējie stringi ir UCS2 unikodes kodējumā. To by default vari pamēģināt, moš strādā.

[rpr]

UCS2 nav īstais kodējums.

normālāks exif manuālis ir šis: http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/EXIF.html

par enkodingu var nedomāt, ja izmanto

ini_set("exif.encode_unicode", "UTF-8");