Wednesday, January 20, 2010

A Busy Relief...

It had been a long time since I've been busy like this. Busy with work I mean and not with my own business. After finishing the translation of Alexander's story VI, I'm thinking of taking a bit of a break for the time being. A break from Ayvarith, but not from other things that is.
I brought my usual book about HDR to read today and also the manual of my new baby dedicated-flash to read for today, but I got so busy with the motor in one of the labs that I didn't do such readings in the early morning but later in day. I think I will snap a further picture for this machine that I'm preparing my samples with. It's called "Freeze Dryer". Ever wondered how come there is a milk powder? Well, this machine can do it. It sucks all the air in a space enclosed by some plastic or glass container, and freezes this space. Depending on the sample's weight this process can take some several days. The larger the sample is, the more time you'll need. But there is always a regular check for the oil level in the motor, which is critical for the work. There is one motor that is dead and I'm working on fixing it, if possible, so I don't want to go on with another damaged motor and hence, no work to be done with those fishy samples.
And I just discovered that when someone interrupts or interfers with what you were doing oiginally, is something fishy indeed.

Keeping my work with the pictures I took in Ireland, specially around Aughnanure Caslte, I've come to test some theory with composing HDR. This time, I wanted to apply one of the things that I've learned from the book I'm reading already, and that isharpening before tone-mapping. In fact, I never thought of mangling with the images in HDR (or 32-bit) format because in Photoshop, lot of options are turned off and you can't do much, and hence, I've never thought of doing something other than tonemapping my images and fixing the lights in some areas, and for this reason alone I seldom use Photoshop now for HDR purposes. But now, I've learned that I can do sharpening to the original HDR image and enhance the image before tone-mapping. Sharpening the image usually pops out some artifacts or noise in the image but with HDR, we have an open space of values assigned to each pixel in the image and hence, we can sharpen the image and not affecting the data. This is the theory. However, in my trial I wasn't successful (and maybe misunderstood some concept or Mr Christian Bloch does not want to give me all his secrets!), and I produced lot of artifacts that I need to remove. Anyway, for my image, I decided to sharpen the normal way after tone-mapping in Photomatix, and I will give another trial later on with a new image. Maybe my image was not so good after all... specially with the chromatic aberration on the edges (I'm supposed to clean those in the original RAW files before I merge to HDR, anyway too much headache for me now!).

The Green Wall- Aughnanure Castle. Co. Galway, Ireland.

I have one Panoramic HDR that is making a headache for me, and so, I think I will to do the whole process with Photoshop this time instead of Photomatix, since Photomatix has a problem with memory usage. I know, my PC is not a competant but well, I could handle the file only in Photoshop so far.

This day seems different since I was busy with my hands mostly and not writing as usual. And tomorrow I think I will be alone in the work place! Yeppieeeee...

No comments:

Post a Comment