LaserSoft Imaging

SRD "auto" always applies settings,that don`t seem to actually remove ANY dust.I know,that I have to set the output size before.So I set it for example to 24/36cm with a resolution of 400dpi (what`s actually 4000dpi scanning resolution,if you scan a 24/36mm slide).Then I made a prescan in SRD and pressed the "auto" button.But those settings don`t remove ANY dust.I also tried to set the output size to 24/36mm/4000dpi.Same result.
What am I doing wrong?
Stefan

Dear Stefan,
you don't do anything wrong, it is rather the SRD auto function that is too weak. I it very difficult here to determine the "optimum strenght" as dust or scratches - and image details - are three fuzzy factors.
This is the reason why SilverFast's SRD does not rely on automatism, but lets the user control the functionality of SRD.

Dear Stefan,
you don't do anything wrong, it is rather the SRD auto function that is too weak. I it very difficult here to determine the "optimum strenght" as dust or scratches - and image details - are three fuzzy factors.
This is the reason why SilverFast's SRD does not rely on automatism, but lets the user control the functionality of SRD.

you don't do anything wrong, it is rather the SRD auto function that is too weak. I it very difficult here to determine the "optimum strenght" as dust or scratches - and image details - are three fuzzy factors.
This is the reason why SilverFast's SRD does not rely on automatism, but lets the user control the functionality of SRD.

Sorry Stefan,
the forum interface gave me an error saying that it could not send my reply. But it did send my reply every time I clicked

Dear Stefan,

don't worry, you are not doing anything wrong.

SRD's "Auto" function estimates the best parameters for the image you want to process. In the best case, you automatically get the right parameters. In most cases, the estimated parameters remove some of the defects but the best results are obtained by fine tuning the parameters. In the worst case, the sliders are set to positions that yield to an unsatisfactory result (which we hope will not happen often!). In both last cases, the program is tuned to remove as few defects as possible, that is the reason why when you pressed the auto-button, almost nothing happened. It is a "security" if the estimation is not perfect or fails.

As you probably know, softwares dedicated to the removal of defects (and there are only a few of them) find small structures in the image with specific properties and then decide wether they are important image details or defects. It is a really tough task, and although tuning the SRD can provide good results, having the best automatic function is still a focus of preoccupation and research.

I hope I answered your question and that you will be satisfied with the SRD tool. In any case, feel free to comment the results you obtained or the handling of the SRD tool.

Best regards.

Thanks for all your replies.
What I would like to do in many pictures is just select the sky and do SRD only there.This should easily be possible with the lasso.But in a 4000dpi scan,you can only select a small area of the sky,then you have to go to the navigator and move to another area and add another selecton.That`s ok.,but.... as soon as the selected areas are getting over a certain size,the program nearly stops working on my machine(P3/750mhz/512MB,all memory allocated to Photoshop)
BTW,I didn`t see your answers,because your forum doesn`t indicate what`s new,although I login automatically.
Sometimes it shows,what`s new,sometimes not.
best regards
Stefan

Dear Stefan,

if I understand you right, you can draw a mask directly on the image in the navigator. This enables you to mask at once any area of the image.

Regards.

Thomas

Thanks for this,that`s great!
Stefan