Re: Converting image types and preserving EXIF.
Re: Converting image types and preserving EXIF.
- Subject: Re: Converting image types and preserving EXIF.
- From: Scott Andrew <email@hidden>
- Date: Mon, 8 Aug 2005 07:31:28 -0700
I solved this using iPhoto's Thumbnailer, which iPhoto's file export
uses.
Scott Andrew
On Aug 8, 2005, at 3:11 AM, Heinrich Giesen wrote:
On 08.08.2005, at 09:07, Scott Andrew wrote:
I want to convert from tiff to jpeg and raw to jpeg etc. For tiff ->
JPEG i need to keep EXIF info and for Raw -> JPEG i need to write
exif info.
How can you keep what not exists? Tiff files have no EXIF info.
This is
only part of jpeg files (App1 marker). But tiff files contain a lot
of tags that are also (partially) used in EXIF data. If you want to
create
a jpeg file you have to create the App1 marker. You may have some
luck with CGimages. Forget NSImage (it is only a wrapper for zero, one
or more NSImageRep instances) and forget NSBitmapImageRep. It contains
(if any) only a small subset of EXIF data.
Have a look at:
http://johnst.org/sw/exiftags/
--
Heinrich Giesen
email@hidden
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