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Re: [Gimp-user] Problem importing raw Minolta and Sony files

I admit I missed your previous image and so apologies I don't know what
Darktable shows.

When I processed in UFRaw (version 0.20, my build and part of my Gimp build
for Windows 64-bit), It looks fine. I set the exposure to -1.48,
White-balance to Daylight.

If I play a little more with the curves, I get results similar to Photoshop
CC with ACR 8.3. So, I don't think you are missing anything.

I did process in Gimp 2.9 with UFRaw 16-bit.

Hope that helps.

Partha




On Sat, Apr 5, 2014 at 10:00 PM, Jeffery Small <jeff cjsa com> wrote:


Partha Bagchi <partha1b gmail com> writes:


Can you also put the jpg you shot since that tells me what you are
expecting to see?



As an aside you may want to visit Dave Coffin's page and read the FAQ
especially about gamma and linearity.


The jpg images look very much like what you see in the Darktable images
provided on the webpage.

Antonio Montagnani and Patrick Shanahan also provided feedback regarding
loading my test image into UFRaw.  Thank you all for the valuable feedback.
I admit to certainly not being well versed in using UFRaw and appreciate
all
the pointers being provided.

One thing I had missed before but do see now, is a warning symbol next
to the white balance button.  This does not appear for the Minolta .mrw
images but seems to always display for the Sony .arw files.  When you hover
over it, it states "Cannot use camera white balance."  That is why Auto is
being selected in place of "Daylight".  It makes me wonder what other raw
file data is not being processed by UFRaw for these types of files?  And I
wonder if there is something particularly amiss with the Ubuntu build of
UFRaw on my system?  When others load the sample file, are you seeing a
better image than the one I have posted, prior to making any corrections?
When you load other types of raw images, does UFRaw display them close to
the accurate (i.e., camera) settings?  If so, what version of UFRaw and
what
type of system/OS are you using?

Thanks again for all the valuable help.

Regards,
--
Jeff





On Sat, Apr 5, 2014 at 4:11 PM, Jeffery Small <jeff cjsa com> wrote:



Partha Bagchi <partha1b gmail com> writes:


Can you provide an example image to confirm this?


Sure.  Let's use the clouds photo since it is a more modern Sony format

and

pretty dramatically shows the loss of information.  Point your browser
here:

http://smallthoughts.com/photos/misc/GIMP/clouds.arw

and save the image.  This is a 24-Mb image file taken with an Alpha a77
camera.

Thanks for looking at this.  Let me know if I can provide any additional
info.

Regards,
--
Jeff


On Sat, Apr 5, 2014 at 3:11 PM, Jeffery Small <jeff cjsa com> wrote:



Alexander Rabtchevich <alexander v rabtchevich gmx net> writes:


When you look at an imported image in darktable without applying any
corrections, the program shows you the embedded preview, which was

made

by the camera itself with all the corrections it (the camera) would

made

with the original RAW when converting it to jpg. If you applyin

UFRaw a

camera curve, similar to the one in darktable, you will see the

similar

result...


It's true that the lion image imported into UFRaw is terribly over

exposed,

but that is something that UFRaw is doing to the raw data.  The

original

image has proper exposure which was confirmed at the time the picture

was

shot as well as the proper exposure from the companion JPEG image (I

shoot

RAW+JPG).  In UFRaw the histogram is shoved completely to the right

edge

of the spectrum and there is no way to use this tool to fix the

picture

as

most of the image detail is already lost.  When I open the same file

in

the

DiMAGE Image Viewer software from Minolta (on a Windows XP machine),

the

raw image looks just fine and can be tweaked.

So I have to assume that this is a serious bug in UFRaw and I have

reported

it as such.  I'm just confused that I have not heard other people
complaining
about this problem.

Regards,
--
Jeff

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<div dir=3D"ltr">Can you provide an example image to confirm

this?<div><br>=

</div><div>Thanks,</div><div>Partha</div></div><div

class=3D"gmail_extra"><=

br><br><div class=3D"gmail_quote">On Sat, Apr 5, 2014 at 3:11 PM,

Jeffery

S=

mall <span dir=3D"ltr">&lt;<a href=3D"mailto:jeff cjsa com"

target=3D"_blan=

k">jeff cjsa com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0

.8ex;border-left:1p=

x #ccc solid;padding-left:1ex">Alexander Rabtchevich &lt;<a

href=3D"mailto:=

alexander v rabtchevich gmx net">alexander v rabtchevich gmx net

</a>&gt;

wr=

ites:<br>



<br>
&gt;When you look at an imported image in darktable without applying

any<br=



&gt;corrections, the program shows you the embedded preview, which was

made=

<br>
&gt;by the camera itself with all the corrections it (the camera) would

mad=

e<br>
&gt;with the original RAW when converting it to jpg. If you applyin

UFRaw

a=

<br>
&gt;camera curve, similar to the one in darktable, you will see the

similar=

<br>
&gt;result...<br>
<br>
It&#39;s true that the lion image imported into UFRaw is terribly over

expo=

sed,<br>
but that is something that UFRaw is doing to the raw data. =A0The

original<=

br>
image has proper exposure which was confirmed at the time the picture

was<b=

r>
shot as well as the proper exposure from the companion JPEG image (I

shoot<=

br>
RAW+JPG). =A0In UFRaw the histogram is shoved completely to the right

edge<=

br>
of the spectrum and there is no way to use this tool to fix the picture

as<=

br>
most of the image detail is already lost. =A0When I open the same file

in

t=

he<br>
DiMAGE Image Viewer software from Minolta (on a Windows XP machine),

the<br=



raw image looks just fine and can be tweaked.<br>
<br>
So I have to assume that this is a serious bug in UFRaw and I have

reported=

<br>
it as such. =A0I&#39;m just confused that I have not heard other people

com=

plaining<br>
about this problem.<br>
<br>
Regards,<br>
--<br>
Jeff<br>
<br>
_______________________________________________<br>
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List address: =A0 =A0<a href=3D"mailto:gimp-user-list gnome org

">gimp-user-=

list gnome org</a><br>
List membership: <a href=3D"

https://mail.gnome.org/mailman/listinfo/gimp-us=

er-list" target=3D"_blank">

https://mail.gnome.org/mailman/listinfo/gimp-use=

r-list</a><br>
List archives: =A0 <a href=3D"

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t" target=3D"_blank">https://mail.gnome.org/archives/gimp-user-list

</a><br>

</blockquote></div><br></div>



--001a11c2ef8064e2f704f65119ee--


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<div dir=3D"ltr">Can you also put the jpg you shot since that tells me

what=

you are expecting to see?=A0<div><br></div><div>As an aside you may want

t=

o visit Dave Coffin&#39;s page and read the FAQ especially about gamma

and =

linearity.</div>



<div><br></div><div>Thanks,</div><div>Partha</div><div><br></div></div><div=
class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On Sat, Apr 5,

20=

14 at 4:11 PM, Jeffery Small <span dir=3D"ltr">&lt;<a href=3D"mailto:

jeff c=

jsa.com" target=3D"_blank">jeff cjsa com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0

.8ex;border-left:1p=

x #ccc solid;padding-left:1ex"><div class=3D"">Partha Bagchi &lt;<a

href=3D=

"mailto:partha1b gmail com">partha1b gmail com</a>&gt; writes:<br>
<br>
&gt;Can you provide an example image to confirm this?<br>
<br>
</div>Sure. =A0Let&#39;s use the clouds photo since it is a more modern

Son=

y format and<br>
pretty dramatically shows the loss of information. =A0Point your browser

he=

re:<br>
<br>
<a href=3D"http://smallthoughts.com/photos/misc/GIMP/clouds.arw";

target=3D"=

_blank">http://smallthoughts.com/photos/misc/GIMP/clouds.arw</a><br>
<br>
and save the image. =A0This is a 24-Mb image file taken with an Alpha

a77<b=

r>
camera.<br>
<br>
Thanks for looking at this. =A0Let me know if I can provide any

additional<=

br>
info.<br>
<br>
Regards,<br>
--<br>
Jeff<br>
<div class=3D""><br>
&gt;On Sat, Apr 5, 2014 at 3:11 PM, Jeffery Small &lt;<a href=3D"mailto:

jef=

f cjsa com">jeff cjsa com</a>&gt; wrote:<br>
<br>
</div><div><div class=3D"h5">&gt;&gt; Alexander Rabtchevich &lt;<a

href=3D"=

mailto:alexander v rabtchevich gmx net">alexander v rabtchevich gmx net

</a>=

&gt; writes:<br>
&gt;&gt;<br>
&gt;&gt; &gt;When you look at an imported image in darktable without

applyi=

ng any<br>
&gt;&gt; &gt;corrections, the program shows you the embedded preview,

which=

was made<br>
&gt;&gt; &gt;by the camera itself with all the corrections it (the

camera) =

would made<br>
&gt;&gt; &gt;with the original RAW when converting it to jpg. If you

applyi=

n UFRaw a<br>
&gt;&gt; &gt;camera curve, similar to the one in darktable, you will see

th=

e similar<br>
&gt;&gt; &gt;result...<br>
&gt;&gt;<br>
&gt;&gt; It&#39;s true that the lion image imported into UFRaw is

terribly =

over exposed,<br>
&gt;&gt; but that is something that UFRaw is doing to the raw data.

=A0The =

original<br>
&gt;&gt; image has proper exposure which was confirmed at the time the

pict=

ure was<br>
&gt;&gt; shot as well as the proper exposure from the companion JPEG

image =

(I shoot<br>
&gt;&gt; RAW+JPG). =A0In UFRaw the histogram is shoved completely to the

ri=

ght edge<br>
&gt;&gt; of the spectrum and there is no way to use this tool to fix the

pi=

cture as<br>
&gt;&gt; most of the image detail is already lost. =A0When I open the

same =

file in the<br>
&gt;&gt; DiMAGE Image Viewer software from Minolta (on a Windows XP

machine=

), the<br>
&gt;&gt; raw image looks just fine and can be tweaked.<br>
&gt;&gt;<br>
&gt;&gt; So I have to assume that this is a serious bug in UFRaw and I

have=

reported<br>
&gt;&gt; it as such. =A0I&#39;m just confused that I have not heard other

p=

eople<br>
&gt;&gt; complaining<br>
&gt;&gt; about this problem.<br>
&gt;&gt;<br>
&gt;&gt; Regards,<br>
&gt;&gt; --<br>
&gt;&gt; Jeff<br>
&gt;&gt;<br>
&gt;&gt; _______________________________________________<br>
&gt;&gt; gimp-user-list mailing list<br>
&gt;&gt; List address: =A0 =A0<a href=3D"mailto:gimp-user-list gnome org

">g=

imp-user-list gnome org</a><br>
&gt;&gt; List membership: <a href=3D"

https://mail.gnome.org/mailman/listinf=

o/gimp-user-list" target=3D"_blank">

https://mail.gnome.org/mailman/listinfo=

/gimp-user-list</a><br>
&gt;&gt; List archives: =A0 <a href=3D"

https://mail.gnome.org/archives/gimp=

-user-list" target=3D"_blank">

https://mail.gnome.org/archives/gimp-user-lis=

t</a><br>
&gt;&gt;<br>
<br>
</div></div>&gt;--001a11c2ef8064e2f704f65119ee<br>
&gt;Content-Type: text/html; charset=3DISO-8859-1<br>
&gt;Content-Transfer-Encoding: quoted-printable<br>
<br>
&gt;&lt;div dir=3D3D&quot;ltr&quot;&gt;Can you provide an example image

to =

confirm this?&lt;div&gt;&lt;br&gt;=3D<br>



&gt;&lt;/div&gt;&lt;div&gt;Thanks,&lt;/div&gt;&lt;div&gt;Partha&lt;/div&gt;=
&lt;/div&gt;&lt;div class=3D3D&quot;gmail_extra&quot;&gt;&lt;=3D<br>
&gt;br&gt;&lt;br&gt;&lt;div class=3D3D&quot;gmail_quote&quot;&gt;On Sat,

Ap=

r 5, 2014 at 3:11 PM, Jeffery S=3D<br>
&gt;mall &lt;span dir=3D3D&quot;ltr&quot;&gt;&amp;lt;&lt;a

href=3D3D&quot;m=

ailto:<a href=3D"mailto:jeff cjsa com">jeff cjsa com</a>&quot;

target=3D3D&=

quot;_blan=3D<br>
&gt;k&quot;&gt;<a href=3D"mailto:jeff cjsa com">jeff cjsa com

</a>&lt;/a&gt;=

&amp;gt;&lt;/span&gt; wrote:&lt;br&gt;<br>
&gt;&lt;blockquote class=3D3D&quot;gmail_quote&quot;

style=3D3D&quot;margin=

:0 0 0 .8ex;border-left:1p=3D<br>
&gt;x #ccc solid;padding-left:1ex&quot;&gt;Alexander Rabtchevich

&amp;lt;&l=

t;a href=3D3D&quot;mailto:=3D<br>
&gt;<a href=3D"mailto:alexander v rabtchevich gmx net

">alexander.v.rabtchev=

ich gmx net</a>&quot;&gt;<a href=3D"mailto:

alexander v rabtchevich gmx net"=

alexander v rabtchevich gmx net</a>&lt;/a&gt;&amp;gt; wr=3D<br>

&gt;ites:&lt;br&gt;<br>
<br>
&gt;&lt;br&gt;<br>
&gt;&amp;gt;When you look at an imported image in darktable without

applyin=

g any&lt;br=3D<br>
&gt;&gt;<br>
&gt;&amp;gt;corrections, the program shows you the embedded preview,

which =

was made=3D<br>
&gt;&lt;br&gt;<br>
&gt;&amp;gt;by the camera itself with all the corrections it (the camera)

w=

ould mad=3D<br>
&gt;e&lt;br&gt;<br>
&gt;&amp;gt;with the original RAW when converting it to jpg. If you

applyin=

UFRaw a=3D<br>
&gt;&lt;br&gt;<br>
&gt;&amp;gt;camera curve, similar to the one in darktable, you will see

the=

similar=3D<br>
&gt;&lt;br&gt;<br>
&gt;&amp;gt;result...&lt;br&gt;<br>
&gt;&lt;br&gt;<br>
&gt;It&amp;#39;s true that the lion image imported into UFRaw is terribly

o=

ver expo=3D<br>
&gt;sed,&lt;br&gt;<br>
&gt;but that is something that UFRaw is doing to the raw data. =3DA0The

ori=

ginal&lt;=3D<br>
&gt;br&gt;<br>
&gt;image has proper exposure which was confirmed at the time the picture

w=

as&lt;b=3D<br>
&gt;r&gt;<br>
&gt;shot as well as the proper exposure from the companion JPEG image (I

sh=

oot&lt;=3D<br>
&gt;br&gt;<br>
&gt;RAW+JPG). =3DA0In UFRaw the histogram is shoved completely to the

right=

edge&lt;=3D<br>
&gt;br&gt;<br>
&gt;of the spectrum and there is no way to use this tool to fix the

picture=

as&lt;=3D<br>
&gt;br&gt;<br>
&gt;most of the image detail is already lost. =3DA0When I open the same

fil=

e in t=3D<br>
&gt;he&lt;br&gt;<br>
&gt;DiMAGE Image Viewer software from Minolta (on a Windows XP machine),

th=

e&lt;br=3D<br>
&gt;&gt;<br>
&gt;raw image looks just fine and can be tweaked.&lt;br&gt;<br>
&gt;&lt;br&gt;<br>
&gt;So I have to assume that this is a serious bug in UFRaw and I have

repo=

rted=3D<br>
&gt;&lt;br&gt;<br>
&gt;it as such. =3DA0I&amp;#39;m just confused that I have not heard

other =

people com=3D<br>
&gt;plaining&lt;br&gt;<br>
&gt;about this problem.&lt;br&gt;<br>
&gt;&lt;br&gt;<br>
&gt;Regards,&lt;br&gt;<br>
&gt;--&lt;br&gt;<br>
&gt;Jeff&lt;br&gt;<br>
&gt;&lt;br&gt;<br>
&gt;_______________________________________________&lt;br&gt;<br>
&gt;gimp-user-list mailing list&lt;br&gt;<br>
&gt;List address: =3DA0 =3DA0&lt;a href=3D3D&quot;mailto:<a

href=3D"mailto:=

gimp-user-list gnome org">gimp-user-list gnome org

</a>&quot;&gt;gimp-user-=

=3D<br>
&gt;<a href=3D"mailto:list gnome org">list gnome org

</a>&lt;/a&gt;&lt;br&gt=

;<br>
&gt;List membership: &lt;a href=3D3D&quot;<a href=3D"

https://mail.gnome.org=

/mailman/listinfo/gimp-us=3D" target=3D"_blank">

https://mail.gnome.org/mail=

man/listinfo/gimp-us=3D</a><br>
&gt;er-list&quot; target=3D3D&quot;_blank&quot;&gt;<a href=3D"

https://mail.=

gnome.org/mailman/listinfo/gimp-use=3D" target=3D"_blank">

https://mail.gnom=

e.org/mailman/listinfo/gimp-use=3D</a><br>
&gt;r-list&lt;/a&gt;&lt;br&gt;<br>
&gt;List archives: =3DA0 &lt;a href=3D3D&quot;<a href=3D"

https://mail.gnome=

.org/archives/gimp-user-lis=3D" target=3D"_blank">

https://mail.gnome.org/ar=

chives/gimp-user-lis=3D</a><br>
&gt;t&quot; target=3D3D&quot;_blank&quot;&gt;<a href=3D"

https://mail.gnome.=

org/archives/gimp-user-list" target=3D"_blank">

https://mail.gnome.org/archi=

ves/gimp-user-list</a>&lt;/a&gt;&lt;br&gt;<br>
&gt;&lt;/blockquote&gt;&lt;/div&gt;&lt;br&gt;&lt;/div&gt;<br>
<br>
&gt;--001a11c2ef8064e2f704f65119ee--<br>
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_______________________________________________<br>
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list gnome org</a><br>
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er-list" target=3D"_blank">

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