Login
Username:

Password:

Remember me



Lost Password?

Register now!
Main Menu
Who's Online
1 user(s) are online (1 user(s) are browsing Forum)

Members: 0
Guests: 1

more...

Browsing this Thread:   1 Anonymous Users



(1) 2 »


AROS 8bit JPEG Images

Joined:
5/2 17:15
From California, United States
Group:
Member
Posts: 162
Offline
It seems that many image viewers and paint programs can load, display, modify and save 8bit Jpeg images. But apparently the AROS JPEG DataType can't open 8bit Jpeg's.

Posted on: 2017/12/7 9:32
Transfer the post to other applications Transfer


Re: AROS 8bit JPEG Images

Joined:
2013/1/15 6:16
From Marseille
Group:
Member
Posts: 200
Offline
Hi,
Do you think it has something to do with many jpg pictures I can't display (in OWB or in ZuneView) ?
Attached are 2 jpg files : the first (with all the numbers) cannot be displayed, when the second (amigaaros...) can.
What do you think ?

Attach file:



jpg  24991191_10159735892195788_8863088846281124351_n.jpg (24.40 KB)
3727_5a2988d294ff1.jpg 320X455 px

jpg  amigaaros-768x576.jpg (98.78 KB)
3727_5a2988e3a4409.jpg 768X576 px

Posted on: 2017/12/7 10:33
Transfer the post to other applications Transfer


Re: AROS 8bit JPEG Images

Joined:
5/2 17:15
From California, United States
Group:
Member
Posts: 162
Offline
@oan3,

I downloaded the two sample jpg image files you provided. The Black Panther jpg and the Desktop jpg were both 24bit. I was able to display the Desktop jpg in Icaros Desktop.

The Black Panther jpg, however, was corrupted somehow.
So I opened it in a paint program and re-saved as 24bit. Then I was able to display it in Icaros Desktop as well.

As an added benefit, I was able to convert both 24bit jpg images directly to IFF24 (ILBM). The conversion was smooth.

I looked at the source code for Jpeg DataType briefly and I found the location in the Read function where it identifies the bitDepth. If it isn't 24 bit it won't load the image. I assume the same is true for the Save function as well. It will only attempt to save 24 bit Jpeg image files rather than 8 bit and 24 bit. In the future maybe it can be revised to support both image bitDepths, hopefully!


Posted on: 2017/12/7 12:07
Transfer the post to other applications Transfer


Re: AROS 8bit JPEG Images

Joined:
2012/4/16 8:41
From Brindisi (Italy)
Group:
Member
Posts: 1121
Offline
Quote:
Do you think it has something to do with many jpg pictures I can't display (in OWB or in ZuneView) ?
Attached are 2 jpg files : the first (with all the numbers) cannot be displayed, when the second (amigaaros...) can.

I have no problem see images with OWB and ZuneView

Attach file:



jpg  Image.jpg (204.42 KB)
3226_5a29d505da89c.jpg 1042X842 px

Posted on: 2017/12/7 15:55
_________________
https://www.plagimusicali.net/
Transfer the post to other applications Transfer


Re: AROS 8bit JPEG Images

Joined:
5/2 17:15
From California, United States
Group:
Member
Posts: 162
Offline
I'm using Icaros Desktop (ABIv0). I'll try with ABIv1.

Posted on: 2017/12/7 18:00
Transfer the post to other applications Transfer


Re: AROS 8bit JPEG Images

Joined:
2013/1/15 6:16
From Marseille
Group:
Member
Posts: 200
Offline
hi,

thanx for your answers. I have to tell i'm on a native installation with nvidia nvs600, on a mainboard populated with a core i5 (tell this is computer A).

It works well on an old optiplex (an other computer for the ones who don't know dell series) with a PIV and the same gfx card with all icaros versions.

On the computer where the problem occures (computer A), the pictures shows correctly under oweb when using icaros 1.5.2 live CD.

So i told myself : then you can copy the jpeg datatypes and the jpeg library from the live CD and it should work...
But :
there is no "jpeg.library" on the live cd
and :
i'm not sure it is enough to make this "trick" work.

Do someone has a jpeg.library from a 1.5.2 icaros install to give me ?

Do you think it is enough or I should also copy the "picture.library" and others ? If so, wich ones ?

Thank you for your help !

@miker : Sorry, it seems i've stolen your thread. it was not my intention at the begining.
do you want me to open an other thread ?

Posted on: 2017/12/8 9:35
Transfer the post to other applications Transfer


Re: AROS 8bit JPEG Images

Joined:
5/2 17:15
From California, United States
Group:
Member
Posts: 162
Offline
@oan3,

This is all the same topic - AROS Jpeg DataType.

So, you can see both jpg images with the jpeg datatype from Icaros 1.5.2?

I have that Live! DVD. I'll try using that one.



Posted on: 2017/12/8 11:13
Transfer the post to other applications Transfer


Re: AROS 8bit JPEG Images

Joined:
2012/4/16 8:41
From Brindisi (Italy)
Group:
Member
Posts: 1121
Offline
Quote:
I'm using Icaros Desktop (ABIv0). I'll try with ABIv1
.

Mine is a system AROS ABIv0

ZuneView Requires jpeg.dataType

OWB See image even without jpeg.dataType or jpeg.library

Posted on: 2017/12/8 17:44
_________________
https://www.plagimusicali.net/
Transfer the post to other applications Transfer


Re: AROS 8bit JPEG Images

Joined:
5/2 17:15
From California, United States
Group:
Member
Posts: 162
Offline
@amiga,

Interestingly, I tried to view the first Black Panther jpg file with the Nightly ABIv1 jpg datatype and it failed.

I used a paint program to open it and then re-saved as a 24bit jpg. Then I was able to view it with ABIv1 in MultiView and ZuneView.

The original jpg file was quite a bit smaller in size than the re-saved file as in 50kb vs 25kb. It could be due to the compression algorithm used, but 25kb is a lot of difference.

Which version of ABIv0 are you using? Icaros, Hosted, Native? I wonder which jpg datatype you are using. If it's ABIv0 I could use the same one to test the jpg file with.

Posted on: 2017/12/8 19:22
Transfer the post to other applications Transfer


Re: AROS 8bit JPEG Images

Joined:
2010/8/30 7:20
Group:
Member
Posts: 952
Offline
btw no prob opening that black panter jpg file using multiview on m68k.

Posted on: 2017/12/8 20:17
Transfer the post to other applications Transfer



(1) 2 »



You can view topic.
You cannot start a new topic.
You cannot reply to posts.
You cannot edit your posts.
You cannot delete your posts.
You cannot add new polls.
You cannot vote in polls.
You cannot attach files to posts.
You cannot post without approval.

[Advanced Search]


Search
Top Posters
1 paolone
paolone
4365
2 magorium
magorium
4095
3 phoenixkonsole
phoenixkonsole
3893
4 nikolaos
nikolaos
3694
5 deadwood
deadwood
2923
6 ncafferkey
ncafferkey
2648
7 mazze
mazze
2214
8 clusteruk
clusteruk
2111
9 Kalamatee
Kalamatee
2024
10 damocles
damocles
1789
© 2004-2017 AROS Exec