In our previous episode, Mattias Gaertner said:
> > Are there still no ways around the 64-bit storage format? I thought
> > TLazintfImage was meant to be a step in that direction?
>
> There are various image formats (TLazintfImage,
> TFPCompactImgRGBA8Bit, TFPCompactImgGrayAlpha8Bit, ..), so memor
Am 09.12.2016 10:05 schrieb "Graeme Geldenhuys" <
mailingli...@geldenhuys.co.uk>:
> The most widely used image editing software for X11 based
> systems, The GIMP, doesn't even support 16bit color channel images.
If I remember correctly the next major version of The GIMP is supposed to
support 16-b
On Fri, 9 Dec 2016, Marco van de Voort wrote:
In our previous episode, Michael Van Canneyt said:
Why FPImage uses 64bit per pixel is beyond me! The original author of
FPImage clearly thought he/she saw something cool in that, but 99.9%
of the time *nobody* needs that. It's causing more gr
On Fri, 9 Dec 2016 12:39:54 +0100 (CET)
mar...@stack.nl (Marco van de Voort) wrote:
>[...]
> Are there still no ways around the 64-bit storage format? I thought
> TLazintfImage was meant to be a step in that direction?
There are various image formats (TLazintfImage,
TFPCompactImgRGBA8Bit, TFPComp
In our previous episode, Michael Van Canneyt said:
> >> Why FPImage uses 64bit per pixel is beyond me! The original author of
> >> FPImage clearly thought he/she saw something cool in that, but 99.9%
> >> of the time *nobody* needs that. It's causing more grief (and code to do
> >> conversions)
On 2016-12-09 09:04, Graeme Geldenhuys wrote:
> What I'm
> saying is that FPImage uses 16bit color channels, but literally only a
> hand full (and I mean less than 5) of image editing programs support
> 16bit color channel images.
Impressively, the now discontinued cross-platform image editor Pix
On 2016-12-09 09:14, Michael Van Canneyt wrote:
>
> The desire was to be able to support all possible channels when reading a
> file.
> That means 16bit.
OK, I can see the logic behind that. Time for another coffee, to kick
my brain into gear. ;-)
Regards,
Graeme
_
On Fri, 9 Dec 2016, Graeme Geldenhuys wrote:
On 2016-12-09 07:28, Michael Van Canneyt wrote:
The 64bit is the maximum limit. I doubt the 99.9%. Image editing
require more than 8bit per channel since decades.
And that is why we decided to use 64-bit.
Sorry, maybe I'm getting confused wi
On 2016-12-09 07:28, Michael Van Canneyt wrote:
>> > The 64bit is the maximum limit. I doubt the 99.9%. Image editing
>> > require more than 8bit per channel since decades.
> And that is why we decided to use 64-bit.
Sorry, maybe I'm getting confused with the meaning of all than. What I'm
sayi
On Thu, 8 Dec 2016, Mattias Gaertner wrote:
On Thu, 8 Dec 2016 14:09:53 +
Graeme Geldenhuys wrote:
On 2016-12-08 14:01, Mattias Gaertner wrote:
That would be a 64bit per pixel image, wasting a lot of memory.
Why FPImage uses 64bit per pixel is beyond me! The original author of
FPImag
On 2016-12-08 16:24, Mattias Gaertner wrote:
> Even rocket scientists can't read minds.
:-)
> Will you create the patch or should I?
I'll create a patch.
Regards,
Graeme
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On Thu, 8 Dec 2016 15:15:55 +
Graeme Geldenhuys wrote:
> On 2016-12-08 14:22, Mattias Gaertner wrote:
>[...]
> It's not rocket science. ;-)
Even rocket scientists can't read minds.
Will you create the patch or should I?
Mattias
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fpc-pascal mai
On 2016-12-08 14:22, Mattias Gaertner wrote:
>> > This might be a good solution. Some ready-made event handlers.
> Any idea how that should look like?
In the TFPReaderTiff class, define public methods (possibly marked as
virtual) as follows Here's one example:
procedure TFPReaderTiff.CreateC
On Thu, 8 Dec 2016 14:09:53 +
Graeme Geldenhuys wrote:
> On 2016-12-08 14:01, Mattias Gaertner wrote:
> > That would be a 64bit per pixel image, wasting a lot of memory.
>
> Why FPImage uses 64bit per pixel is beyond me! The original author of
> FPImage clearly thought he/she saw something
On 2016-12-08 14:01, Mattias Gaertner wrote:
> That would be a 64bit per pixel image, wasting a lot of memory.
Why FPImage uses 64bit per pixel is beyond me! The original author of
FPImage clearly thought he/she saw something cool in that, but 99.9%
of the time *nobody* needs that. It's causin
On Thu, 8 Dec 2016 12:12:27 +
Graeme Geldenhuys wrote:
> On 2016-12-07 17:47, Mattias Gaertner wrote:
> >> > t := TFPReaderTiff.Create;
> > t.OnCreateImage:=@...
> >
>
> Thanks that solved it.
>
> But why can't TFPReaderTiff do that for us, or at least have a default
> implementation
On 2016-12-07 17:47, Mattias Gaertner wrote:
>> > t := TFPReaderTiff.Create;
> t.OnCreateImage:=@...
>
Thanks that solved it.
But why can't TFPReaderTiff do that for us, or at least have a default
implementation (override'able by developers if really needed).
Regards,
Graeme
--
fpGUI Tool
On Wed, 7 Dec 2016 15:34:13 +
Graeme Geldenhuys wrote:
>[...]
> fs := TFileStream.Create('/tmp/multipage_tiff_example.tif', fmOpenRead);
> t := TFPReaderTiff.Create;
t.OnCreateImage:=@...
> t.LoadFromStream(fs, true);
Mattias
___
fpc-pascal
On 2016-12-07 11:43, Mattias Gaertner wrote:
> TFPReaderTiff and TFPWriterTiff support multiple IFD using multiple
> TFPCustomImage.
I just tried with FPC 3.1.1 and it fails. The initial loading of the
TIFF file works, it correctly tells me there are 10 images (confirmed
with the Unix 'identify'
On 2016-12-07 11:43, Mattias Gaertner wrote:
> Do you mean multiple IFD?
Yes.
> TFPReaderTiff and TFPWriterTiff support multiple IFD using multiple
> TFPCustomImage.
Perfect, many thanks for the confirmation.
Regards,
Graeme
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fpc-pascal maillis
On Wed, 7 Dec 2016 09:58:13 +
Graeme Geldenhuys wrote:
> Hi,
>
> Does anybody know if FPImage supports multi-page TIFF's? Reading or
> Writing.
Do you mean multiple IFD?
TFPReaderTiff and TFPWriterTiff support multiple IFD using multiple
TFPCustomImage.
Mattias
___
Hi,
when I needed to read multi-page tiff files some years ago, I used
TLazReaderTiff. I don't remember if multi-page code worked out of the
box, but I had to extend tiff reader to handle some more exotic format
that came from some imaging software (I think I didn't contribute the
changes bac
Hi,
Does anybody know if FPImage supports multi-page TIFF's? Reading or
Writing.
Regards,
Graeme
--
fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal
http://fpgui.sourceforge.net/
My public PGP key: http://tinyurl.com/graeme-pgp
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