Topic: Todays image is in honor of Steve....

[Greg Groess]

My attempt.  Problem is the mixed lighting.  the background is far too blue.  I used RGB color correction in CM (color blend) followed by lab correction (l channel only).  then I opened the green up in a luminosity blend.  Converted to LAB and boosted the colors (grrr.....  especially the blue).

I used the signs as neutrals.

Steve,
The mixed lighting is truly the biggest problem.

That said we do have some weapons at our disposal now.  In class we are going to cover using CM for masking.  One of the advantages is that you can select a mask based on the color channels and visually adjust it to isolate the offending problem.  I this case the blue fringes from the daylight spilling all over the place. 

Here is what I did for this image.

1) I started with the incandescent to daylight curve from the library files...(Thanks Mike)
2) After the color was in a better place, I went after the lighting. I copied the background to a new layer. I opened the channels on that layer; using CM to lighten the Red and Green Channels.  I then replaced the Blue channel with a copy of the red.  It offered me the most bang for the buck as it were.  I then applied the layer in Luminosity Mode. This opened the deep shadows, especially in the black sweatshirt of the customer.
3) I then adjusted the skin tones manually (Shot3) Flatten the layer again...REopened in LAB and Boosted the overall color with the saturation slider.
4) Now for the blue fringe...Created a new layer and opened it in CM. Clicked on the mask icon and went hunting for a mask...I tried the red channel and the blue channel but neither would allow me to isolate the daylight fringes.  My final choice was the B channel in LAB since it controls yellow and blue I tried to make it dark enough to remove the color without hurting the rest of the image.  (Shot4)
5) I applied the B curve shown in Shot 5 to remove the blue banding.  The bonus is that it removes it across all areas of the image including the lights and the rolled tarps.  The minus is that it does bleed across the cherries but they should be more red in any case.

Greg

[Greg Groess]

Final image..

Greg

[Greg Groess]

Where is your heart Greg? - these plants have an aura around them, can't you feel their spirit?

I think this is more atmospheric and brings the picture to life - I can just feel it pulsating in amongst the leaves.

Me and artichokes are not the best of friends...I already thought I was doing it a favor....
Greg

[themightyzog]

Fantastic correction on the shop Greg - when I compare mine with yours, my image is full of artificial light.  But when I was correcting it I thought I had removed it all.

Great lesson - thank you

[sjordan93436]

Thanks.  Actually, the artichoke started out GREEN, and I move some curves and selections. (just kidding)   If only turning red into green or green into red in the real world was so easy.  The funny part of the story is that doing patents you need to describe the plant.  I got a Royal Horticultural Society colour chart.  I had to match the swatches with the leaf and fruit.  It was informative.  I had several of us do the same experiment and compared notes to get the most accurate information.  With northern indirect light, etc. etc. 

Some artichokes are more purple and some are redder depending on the genetics.  I had two that were "brothers" but one was yellower and the other greener.  (we called the yellow one "white" and the green one "yellow" internally)

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shop- 
Great correction.  Mixed lighting can be a curse.
 

[Greg Groess]

Turning red into green is one of the assignments in the class...Lab is really powerful in that regard.  Do the artichokes have a blueish leaf?  I have seen it in certain other plants like a blue spruce tree...

Greg