http://www.lightcrafts.com/forums/ This is a discussion forum powered by vBulletin. To find out about vBulletin, go to http://www.vbulletin.com/ . en Wed, 08 Sep 2010 04:04:09 GMT vBulletin 60 http://www.lightcrafts.com/forums/images/misc/rss.png http://www.lightcrafts.com/forums/ http://www.lightcrafts.com/forums/showthread.php?1680-Conversion&goto=newpost Mon, 06 Sep 2010 15:33:01 GMT I wanted to upload some images to an on-line forum. They have to be jpeg and smaller than 78Kb. I was able to use LZ to create these images. I... I wanted to upload some images to an on-line forum. They have to be jpeg and smaller than 78Kb. I was able to use LZ to create these images. I used convert, selected jpeg, fit within 1024x1024 and 70% quality. These are not images you would want to print, but it worked.

I tried changing 300 ppi to 50 but there was no difference in image size. I seem to recall this setting was ignored in the past. Apparently it is still ignored. I have scanner software that does allow you to set ppi and it is important for desired image size. There is probably a trade-off between ppi and quality setting, but I can't explore that with LZ. ]]> Tips and Techniques rbpeirce http://www.lightcrafts.com/forums/showthread.php?1680-Conversion http://www.lightcrafts.com/forums/showthread.php?1679-Sigma-SD15-please...&goto=newpost Thu, 02 Sep 2010 10:45:54 GMT Hi guys,

I know that it's more likely to snow in you-know-where, but I have a SD15 and would love Lightzone raw support for it. Let me know if you want some files.

]]> Camera Support JLK http://www.lightcrafts.com/forums/showthread.php?1679-Sigma-SD15-please... http://www.lightcrafts.com/forums/showthread.php?1678-Will-old-version-LZ-remain-when-new-version-arrives&goto=newpost Wed, 01 Sep 2010 13:28:25 GMT Just wondering if, when the new version of LZ arrives LZ 3.9 will always remain just in case of the unlikely event that some of us might actually... Just wondering if, when the new version of LZ arrives LZ 3.9 will always remain just in case of the unlikely
event that some of us might actually prefer the 3.9 version over the new version. It would be nice to have the option of going back to the older version if one wishes to.
Regards
Fred ]]> General ThingFish http://www.lightcrafts.com/forums/showthread.php?1678-Will-old-version-LZ-remain-when-new-version-arrives http://www.lightcrafts.com/forums/showthread.php?1677-Is-there-a-way-to-permanently-turn-off-auto-save&goto=newpost Tue, 31 Aug 2010 20:38:02 GMT Every time I cancel a save auto-save gets turned on and I have to go to preferences to turn it off. This is really backwards. The fact that you... Every time I cancel a save auto-save gets turned on and I have to go to preferences to turn it off. This is really backwards. The fact that you don't want to save something ought to tell the program that is what you might want to do all the time. How do you defeat this? ]]> Technical rbpeirce http://www.lightcrafts.com/forums/showthread.php?1677-Is-there-a-way-to-permanently-turn-off-auto-save http://www.lightcrafts.com/forums/showthread.php?1676-In-Camera-RAW-editing.&goto=newpost Thu, 26 Aug 2010 20:14:41 GMT As I recall, from the video featuring Fabio and Uwe Steinmueller that was linked from the old LZ web site, Fabio at one point suggested that, in the... As I recall, from the video featuring Fabio and Uwe Steinmueller that was linked from the old LZ web site, Fabio at one point suggested that, in the near future about 5 years away, the manufacturers would supply cameras that performed, or allowed users to perform, many of the basic image editing activities ( and a few less basic ones) in camera.

We have, so far, seen features that can be used to relight an image to some extent as the shot is taken and a few cameras are appearing with inbuilt HDR capability or sorts.

Now we have the just announced Canon 60D with, as I read it, internal RAW editing and subsequent output of the edited filesas jpgs as well as the exisiting concept of picture styles for its jpg images.

From memory since the video was produced approximately 5 years have passed so it's happening pretty much as Fabio predicted.

I thought that interesting and worth mentioning here.

Does anyone have any further thoughts about the way things are likely to progress?

Might we see upmarket cameras accepting 'apps' in the same way that phones can? Will the phones make the lower order cameras obsolete? I've seen some shots taken on ( a few different) mobile phones where the image quality - certainly for electronic sharing - seemed to be nothing short of excellent even without the attention of an editor.

I open the question to the floor ....



Grant Perkins ]]> General SFA http://www.lightcrafts.com/forums/showthread.php?1676-In-Camera-RAW-editing. http://www.lightcrafts.com/forums/showthread.php?1675-Real-HDR&goto=newpost Thu, 26 Aug 2010 20:07:07 GMT I sent the following suggestion to support. For some time I think about an idea... a kind of dream. I am doing some HDR but am often... I sent the following suggestion to support.

For some time I think about an idea... a kind of dream.

I am doing some HDR but am often disappointed about the poor control I have on the tone mapping process. It is not a matter of having more sliders to pull and push, but of getting a program, which does not preempt too much on what I want to realize.

- In most tone mapping algorithm, the user is forced to start with an image, which is already tone mapped, so the only thing he can do is to tune some variables to get better results. To illustrate this, open three bracketed images in Photomatix. The first image shown is excessively contrasted, demonstrating in a kind that the image covers a range, which does not fit into screen/print; then select the tab Tone mapping, and you get a readily mapped image. There is no way to move the sliders to obtain the initial image (which would be the case if the user had full control on the mapping process).

- The definition of the zones in the picture, which will be compressed together and within which the local contrast will be enhanced is automatic. This automatism does not take neither image content nor image scale into account - you will not map a 70 Mp pano the same way as a 10 Mb single picture.


What I need: a program which allows me to control thoroughly the degree of compression of the whole range and to enhance local contrast selectively, letting ME select the zone of the image and the kind of contrast enhancement.

The tools in Lightzone come pretty close to these requirements, if I refer to the Zonemapper (with the corrections I already proposed) and the local contrast elements in the Relight tool. It includes even some semi-automatic tone mapping with the Relight tool V4. The Regions and the color tab in the tools is what I need to make selections according to the content So what I lack in the first place is a capability of reading EXR or HDR files.

I suppose it is not such simple to introduce that. Computations should be made in 32bit with floating decimal, the histogram tool should eventually be adapted to show what's outside the tiff-range (HDR-Exposure has it).

The scope of such an extension of Lightzone should not be to be capable of mastering ranges of 25 EV's. On the contrary, it would be sensible to restrict the usability of those functions to 14-16 EV's but to give full control on the mapping. 16 EV is about what you get with today's best cameras, three bracketed images with a 2 EV bracketing step. This limit would probably cover most of the usual demands for tone mapping. A higher dynamic ranges surpasses anyway the possibilities of eye and brain in any given setting.

For some additional considerations on the 'usability' of HDR, take a look at the following contribution: http://www.cambridgeincolour.com/forums/thread5235.htm.


Hmm... I will be patient until version 5 comes out...


Reto ]]> Technical hadorn http://www.lightcrafts.com/forums/showthread.php?1675-Real-HDR http://www.lightcrafts.com/forums/showthread.php?1674-Message-to-All-Users&goto=newpost Mon, 23 Aug 2010 17:01:10 GMT Please remember to contact support with your problems! This is very important especially now while v4 is being worked on. Gone are the "black hole" days---support is pretty responsive now, and has been for the last year.

Do post things here as well, so we can all be up to speed on the latest issues, but don't neglect to contact support.

Those of you reading this who are not registered users: please get registered. You must contact support to do this. Check after 24 hours to make sure you're in, and re-contact support if there are continued problems, or contact me through www.texandrewsart.com

Thank you all.

Tex Andrews ]]> Welcome/Announcements tex andrews http://www.lightcrafts.com/forums/showthread.php?1674-Message-to-All-Users http://www.lightcrafts.com/forums/showthread.php?1673-Remove-2Gb-memory-limit-(Mac)&goto=newpost Sat, 21 Aug 2010 15:26:41 GMT I have a late 2009 iMac with 8Gb RAM fitted, LZ will not let me allocate more 2560Mb. Is there a good reason for this? Is it a Java thing? How... I have a late 2009 iMac with 8Gb RAM fitted, LZ will not let me allocate more 2560Mb.

Is there a good reason for this? Is it a Java thing? How could I change this assuming it is not a stupid idea.

Oh, and erm, first post, Hello! ]]> Technical epo http://www.lightcrafts.com/forums/showthread.php?1673-Remove-2Gb-memory-limit-(Mac) http://www.lightcrafts.com/forums/showthread.php?1672-Lightzone-won-t-start-(Arch-linux)&goto=newpost Fri, 20 Aug 2010 11:32:56 GMT Running Arch Linux (64 bit).

Have installed Lightzone, tested it, worked with it some - no problem.
But now Lightzone won't start. Is there any log (or any other way) to look for the source of the problem ?

Thanks
Ben ]]> Linux ben-light http://www.lightcrafts.com/forums/showthread.php?1672-Lightzone-won-t-start-(Arch-linux) http://www.lightcrafts.com/forums/showthread.php?1671-Any-of-our-Euro-zone-or-UK-friends-going-to-Photokina&goto=newpost Mon, 09 Aug 2010 11:10:15 GMT Let us know. There may be some interesting things this year (although it doesn't look like it from Nikon, if rumors are true...). ]]> General tex andrews http://www.lightcrafts.com/forums/showthread.php?1671-Any-of-our-Euro-zone-or-UK-friends-going-to-Photokina