Sunday, January 3, 2016

Mixing for Truth

Oooooah! <thumpa><thumpa><thumpa>

I hadn’t heard much from Rosco in the past few days, as he was squirreled away (if you excuse the expression) in his dark room scratching through a back log of blinkies which he announced he was determine to get processed as soon as possible. 

“What’s up, Roski,” I shouted.

“Woof! Come see!”

So I got up and walked into his photo-lair.

“I just discovered something,” Rosco said. 

“Well, what?”

He pushed a blinkie toward me with his paw.

“See that?”

“Yes...”

“What’s wrong with it?”

“Uh... I donno.  It looks pretty nice to me.”

Rosco gave me a blank-disdainful kind of look.

“It’s too greeny” he said definitively, “I have doggie blue-vision, and even I know that grass doesn’t look like that.”

“It does if you’re playing football.”

“?”

“Well, it is sorta like creme de menthe

Rosco had it.  “Cramp du month? What are you talking about?

I’m agreeing with you, Roski, it’s too bluey-green.  Was this shot in Ireland by any chance?

“Where?”

“Ireland — a very greeny sort of place”

“Never sniffed it.  No.  The blinkie was shot in Midtown.”

“That’s not Loopy Loops is it?” 

“No...it’s Big Canyon Road... where we drove around that evening...”

“Oh yes... I remember”

“Well the grass doesnt’ look all cramp di monthy now does it?”  

"Crehmm" Roski, "say crehm de mint"

"Well does it or not?"

“Uh...no.  I recall it was pretty fresh and lush as it was still Spring and the Big Heat hadn’t yet struck ...”

“Yes,” Rosco, said, "but not that green.   That’s one of the things that really gets to me, especially with digital blinkies.  All this minthy green is a lie.

“Well, but you must admit it looks nice,” I volunteered.

“It might, but it’s not true.”

“But when I work on it, it gets too yellowy, which isn’t true either.”


“So what did you discover?”

Rosco explained that after he worked on manually taking out the purple fringing in the image and adjusted the levels, shadows/highlight just a tad to where he got it more or less in the ball park of what he was sniffing after he decided to “finally” do something about the the creme de menthe effect.

“So what did you do?”

“Well, I pawfully traced out the foreground green and then fiddled very very carefully with hue and saturation, to   tone down the greenies at least a bit. 

“I saved the file and was about to do a “curve check” when I noticed “MIXED CHANNELS”

“You hadn’t seen it before?” 

“Yes I had, but I was putting off discovering what it did.  There was too much other stuff to learn.”

“So?”

“So I opened it up, and saw that it was like selective color but only in RGB not CMYK.”

“And... I started fiddling with it and discovered that it did a much better job of anything yet at getting rid of the minthies.  Look!


I looked.

“Tell me the blinkie on the right isn’t closer to what we actually saw?”

“Yes...” I said, “it most likely is...”

“Most likely?  Definitely!  The trees had shadows but they weren’t really blue either.”

“Well it looks like you just added a warming filter.”

“I did NOT” Rosco said indignantly.

“I tried that ... after... It created a similar look but not quite.  The filter affected the whole photograph.  The mixing did too but in ways that were more ... uh... well channelled or specific.

“What do you mean?”

Roski nudged me over to the screen.  He called up the pre-final image, on the left, without the channel mixing adjustments.  Then he applied a warming filter, and got it as close to the “mixed” final version of the image. 

“Now look closely at the little spaces of dirt.”

I did.

“See? See?  The warming filter oranges those little spaces of dirt between the grass.  The channel mixing version does not!!! The earth is just the color it was.”

It seemed to me that Roski was right. 

“Congratulations Roski,” I said, “your a mixer of truth.”

Monday, November 17, 2014

Flakes


"This Blinkie stuff is real brain work,"  Rosco said.   

"How so?"

"Well, what with all these sliders and buttons and tweaky thingies ... any one blinkie turns into a thousand thousand possible blinkies...."

"You mean a kaleidoscope?"  I asked

"What's a keidoscope?"

"A wheel that makes a thousand thousand different blinkies out of coloured chips."

"Well that's what I have,"  Rosco said.

"Well with the three programmes you have now, you have three keidoscopes,"  I said in a somewhat positive tone of voice...

Rosco looked dismayed.

"So ...anyways,  I couldn't decide if I liked the more natural and photographic blinkie or the version made darker and more dramatic like a  keidoscope painting. ...."

"Well,"  I said,  "You have two blogs, so post them both..."

"I have FOUR blogs, Rosco said in a correcting tone of voice, "Smudgies, Blinkies  and ....

"... You started another one?"  

"Yes... the other eye ... where i'll post the film version of the digital or the digital version of the film...."

"Don't you have some bones to dig for,"  I asked?

"Yes... but they can wait."

 

Tuesday, November 4, 2014

wooofah-wooofah-wooofah-wooofah......

aaawooofah-wooofah-wooofah-wooofah......

I heard heavy breathing in the other room, accompanied by,

thump thump thump thump thump thump thump thump....

I got up.

What's going on Roski?

Rosco looked up and then nudged the screen with his nose: LOOK



"Wow" I said, "that's quite a difference.  What did you do?"

"I got a Leica!" Rosco said assertedly.

"No you didn't."

"Yes I did!  Well ... the next best thing in any case..."

"What next best thing can there be?"

"DxO"

"The program you downloaded for free last week?"

 thump thump thump thump thump

"It did the one onthe right?"

"It did both of them," Rosco said mischievously.

"Well, I was trying out DxO 8 and did my usual fiddlings with the raw file..."

"...and?"

"And that's when I came up with the one on the left.  The jpg was awful in comparison...."   

"Yeah... they look good until you see the raw better..."

"Bones are best raw,"  Rosco said with the air of a connoiseur.

"And so...?"

"And so I was just about to post the one on the left when another doggie I chat with told me about the "camera" adjustments.    You can adjust the picture to make it like it would be shot if you used any of a bunch of different camera models... Canon, Nikon, Pentax, Fuji....and of course LEICA....  so I pushed the button until it came up with Leica M9, and the one on the right is what I got!"

"Wow... that's neat!"


 thump thump thump thump thump

"I had to readjust the shadows a bit on the quick rather than go in and redo the whole thing," Rosco said,  but now I have  a Leica!"


wooofah-wooofah-wooofah-wooofah......


 

Saturday, October 25, 2014

White and Black Sabbath

OR

Whatcom Cty., Wash. (10/14)

This is not quite Roski's first click on the Rolleiflex.  He's noyed about the grain. When he gets back from his Big Romp South, he says he wants to roll with a new album.

Tuesday, October 14, 2014

Star of Autumn

Fairhaven, Wash. (10/14) 

Rosco says he likes this Nikon/Film version better than the digital and will eventually switch them. 

Saturday, September 27, 2014

Depictions


What grabbed notice in this dead trunk was its near shimmering whiteness in the sun.  Darkening the exposure and 'shadowing' the bright spots got rid of some clipping and made for green/white contrast.  But contrast is not the same as brightness.  Re lighting the bright spots (short of clipping) and brightening the picture back was closer to what was.  Rosco says it's the difference between a painting and a representation.




Monday, September 22, 2014

Low on High, Dark in Bright


Rosco headed up to Lake Shannon in the North Cascades mainly to use up an old roll of film.   The lake is accessible only via an unimproved,  gravel mountain road.  Once we got there, i realized that the lake was a man-made creation.  The late summer low water level exposed the "handiwork".   Basically humans went up to the mountain, bulldozed the shit out of the forest and then flooded it.  Voilá ... LAKE.   It was ghoulish, like a tree-stump cemetery. 

But, back home, pawing his photo-controls, Rosco learned to use the exposure and offset sliders.
 


This is the original photo as commercially scanned and without tweaking.



First tweak uses 27% auto tone correction + 17% midtone contrast + 17% blue highlight increase to do something about the wash-cycle grey sky.



The first tweak substantially livened an otherwise chromatically lifeless shot.  But what rosco discovered is that by using the exposure and offset controls together he can brighten up and shadow down the foto at the same time.  Whereas exposure affects the entire picture; offset works mainly (but not exclusively) on the mid tones.  The second tweak adjust exposure up .46 and offset down .-.0184  



Unfortunately an inevitable side effect of the second tweak was SkyTeal which Rosco hates.  So, for Tweak #3, he selected the sky area and adjusted Hue Saturation and Lightness to "blue" the sky.   "You have to be careful not to overdo it," he said.  "The trick is that the sky should not be darker or less hazy than the furthest point back -- in this case that little bump of mountain.   It has to blend."

Photoshop has a highlight/shadow and midtones control panel which produces similar results.  The difference is that "highlight & shadows" isolates the action to highlights and shadows.  Duh.   Exposure and offset produce more general results.  

Rosco wanted to make sure I put down that he realizes that upping the exposure just even a tad came close to blowing out parts of the shoreline.  He thinks those areas could be adjusted by using the Hi/Dows control; but he says he's too tired, the photo isn't that great anyways and he wants to go chew a bone now. 



So... I  did it for him.

Wednesday, July 2, 2014

Slices in Light

Roski has been experimenting with what he calls "charro-scurro."    He  wants to capture the transluscent effect of light in the dark and shady forest. 

"But," he says with a certain swagger-of-lingo, "when I bump up the shadows, even just a tad, the picture becomes all tutti-frutti and looses it shimmery."

 "The same, happens, if I tone down the near blow outs in the whites," he ads. 

1st slice

2nd slice

3rd (final) slice
What seems to happen, I suggest, is that by making objects in the  shadows more visible you detract from the contrast between charro and scurro that the eye notices when it first sees the picture.   There are also subtle but sensible changes caused by even a tad more light reflecting around the picture as a whole. 

"But aren't blow outs and burn outs bad to have?"  Roski asks.

Do you see unseeable darks in real life?

"Well, yes, I guess." 

Then do what you like. 




Sunday, March 30, 2014

Rosco's Annoyance

Rosco was baffled and annoyed at what Blogger did to his tongue-over-chop, laborious work on the first of his Nooksack series.   Once he was pleased with his fiddling he uploaded it to his page only to see that Blogger had "upped the gamma" to brighten the photograph to a point of visual boredom.  So he went back and darkened it, at first too much and then a tad too little and then so that the uploaded copy pretty much matched the "original" he had decided on in Photoshop/Lightroom.  Rosco now has no idea what anyone else will see.  This means the purchase of yet another programme. 

 
too dark, but something roski had considered as a possible final




pretty much what his final "developed" version in Photoshop looks like



still too dark

Nooksack, Ferndale, Wash. (3/14)
what "Blogger" decided to do rosco's hard work...

Monday, February 10, 2014

Wag Wag - What's in an Algorithm?





Rosco is amazed at phoshops coolness.   Top left is single lens, non-filtered original film negative.  Bottom left is what Lightroom does with it.  Right (top and bottom) is the Phoshop Tweak.  

Both LR and PS have adjustments for highlights and shadows (in fact LR has intermediate adjustments for "lights" and "darks" as well).  But whatever algorithm phoshop uses, it adds, in Rosco's poochinion, just an extra gloss. 

Friday, January 31, 2014

Rosco's New Chew Toy


Roski has a new bone and he has been comparing it with his old new bone.   Sometimes the new bone tastes better; sometimes the old one does.  It's so confusing.

Original Scan (L) & LR Adjustments (R)


LR Adjust (L) & PS Adjust (R)





The idea here was to see how and what to use/do in order to get a result equal to the LR adjustment


Both after smart sharpening
Roski says:  you can chew on these until your jaw falls off, but he likes the left one better.


On the other paw....

LR Adjusts on (L) + Further Adjusts in PS (R)
Roski likes the one on the right better, for reasons any dog can see








Monday, December 16, 2013

Tweaking Clouds and Shore


Rosco's issue here was to lighten the shoreline without lightening the clouds.  This was done by a 1/3 stop increase in exposure plus tweaking of lights and shadows.  But (once again) Photoshop provided the dash of extra tweaking by allowing the shoreline to be selected and worked on in isolation.  Same with  the break in the clouds.

Sunday, December 15, 2013

Between Pastel & Radiance

Raw Reworked
Rosco grumpy.   The  live view falls between pastel and radiance.  The end foto result is too saturated and there's basically a beige-out in the field.  Ah well.

Raw(bottom) Adjustment  (top)

Camera's JPG + Raw + Reworked

Thursday, December 12, 2013

Smudging



Rosco wags his tail and says "smudging is fun..."  I tell him he should go work at the Ministry of Truth.   "??"  "Never mind."   

Sunday, September 22, 2013

Comparing the Rose

I heard tail-thumping in the other room.

"Happy, Rosco?"

"I got it!"

"Got what?"

"Got the Pentax to match up with the Lumix"


Lumix vs Pentax (K1000)

"Although I must say, if I should, that I could have added some more of that bruisy color to the film version."

"Bruisy?" 

"You know the reddishy-yellowy-purplish stuff... magen ..  mah

"Magenta?"

"Yes, that one."

"Well, but why would you want to do that?"

"Do what"

"Match them up."

"Well there's no point in comparing things that are different, is there?"

I was left to ponder this bone of canine wisdom.

"Obviously, they're different!  Look, here's the more or less original film shot"


"It was darker and bluer.  Using levels to cut away the dark and light dead tones made the picture relatively brighter... 

 
"But it was still too dark.   Well not, really.  I liked it all gloomy and stuff.  But by trying to get it like the digi version I got to see what was making the difference."

"I'm beginning to your drift"  I said.

"Drift?"

"Like the vanishing boat...  I see where you're going."

"Oh."



"Well anyways," Rosco continued, "after fiddling with lights, darks, and contrasts (which is a kind of darkening)  I got match pretty close, except the film needed some hue or color adjustments.   I tried "color balance" and "film filters"  but the hue/saturation tool seemed to work best.   As I said, I could have matched it even closer with the magen... magen---

---I don't know why that word gives me trouble, Rosco snorted.

"Well don't let it bother you," I said, "call it the bruisy stuff."

"Anyways..." Rosco continued, "if they were totally the same, there'd be nothing to compare." 

Rosco!

Wednesday, March 27, 2013

A Bad Photo Is A Great Smudgie

I could hear Rosco letting out a whelping whine of disappointment.

"What's wrong, Roski?"  I asked.   He showed me.

"Everything's great in this photo except the ducks."



 "Oh, I see,"  I said, "they came out smudgie...."

"But why?" Rosco asked plaintively.

"Did you by any chance shoot with a zoom," I asked.

"Why yes," he replied, "I would have scared the ducks if I had gotten closer."

"Well...zooms don't work well with moving objects."

"They weren't moving!"  Rosco protested.

"Well, they were moving enough to fuzz the foto."

Rosco looked down cast.

"Oh cheer up, little doggie," I said, "make some art...

Great Art Begins with Bad Photographs..."

Rosco went off to smudgie while I wondered if the Daguerrotype had anything to do with instigating the Impressionist movement.

After a while, Rosco came back with not one, but two smudgies. 


"Crosshatch"
 

and

"Pastel"
 "Which one do you like?"  

"I like em all," I replied.

"Okay, I'll post them all...."

And off he went.