Rinoceronte na garrafa

8/8/2019 Rinoceronte na garrafa

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Technique Photo manipulation www.computerarts.co.uk434 May 2008

Photoshop

Faking it inPhotoshopRob Chiu gets creative with

some wildlife and a glass bottle,showing how to create effectsreminiscent of Smirnoffsfamous bottle as lens ads

When creating a composited shot like this, its advisable to take your photos at

the same time so youve got similarly lit shots to work with. Unfortunately, thisisnt always possible because project deadlines often determine the assets you use.

Over the following pages well show you how to compose an image usingthree photographs shot in different places at different times. Rather than relying onthe latest styles or plug-ins to match them up, the trick is to find images that relate

in some way to each other, such as having similar tones, so they can be blended intoa seamless whole. Were using birds flying across a New York skyline, a transparentbottle and a muddy rhino.

DesignerRob Chiu is founder of TheRonin, a motion graphics andprint design studio. He hascontributed work to filmfestivals and exhibitions, andhis short film,Dimensions, forChannel Four/APT films wontwo awards at the BANFFFilm Festival. Chiu is also anews editor at design portalsBD4D and French n Fresh.See www.theronin.co.uk.

On the discThe files you need to workalong with this project canbe found on CD110, in theResources\Photoshoptutorial folder.

Skills

Clipping pathsFree TransformGaussian blursAdjustment Layers

Time needed2 hours

CAP110.tut_photo 34CAP110.tut_photo 34 4/4/08 10:51:424/4/08 10:51:42


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www.computerarts.co.uk Technique Photo manipulation May 20083535

01 The first step is to open the file DSC_0025.jpg, the rhino picture, inPhotoshop. Cut out the rhino using a clipping path. Dont worry too much aboutthe back end of the animal as this wont be used, but you do need to pay closeattention to the rest of it.

02 Next, you need to open the file DSC_3202.jpg. This is a photograph of a seagull flying high aboveNew York. This image will be our main base compos ition. Go back to DSC_0025.jpg and highlight theclipping path you made for the rhino by pressing Ctrl (PC) or Cmnd (Mac) and then clicking on the Pathspalette window.



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03 Drag the rhino image into the main composition by placing the cursorinside the selection and dragging it from window to window. Rename the twolayers in the main composition as Bird New York and Rhino. You can nowclose the original rhino file, but make sure you save the path just in caseyou need to revert back to it later.

04 Now open the bottle image (DSC_4591.jpg) and create a clipping patharound the object. As with the rhino, make a selection of t he bottle and drag itinto the main compos ition, naming the layer Bottle. Again, close the originalbottle but save the path in case you need it later.

05 Use the Free Transform tool (Ctrl/Cmnd+T) to scale the bottle down soit appears roughly as it does in the above screenshot. Set the ink mode to HardLight and change the Opacity to about 80%. You can start to see the effect ofthe bottle on the image immediately.

06 Next, select Transform>Scale to make the rhino image the right size, androtate it so that it loosely follows the trajectory of the birds flight. Dont worry toomuch about the exact size and position because this can be refined in the nextstep. Just make sure it looks right to your eye.



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07 Make a selection of the bottle by clicking onthe Bottle layer while holding down Ctrl (Windows) orCmnd (Mac). Go to the Rhino layer and check themask icon at the bottom of the Layers palette. Thiswill create a mask in the shape of the bottle, thuscontaining the rhino inside the bottle.

08 Turn off the Rhino layer. Make a selection of the Bottle layer but stayon the Bird New York layer, having made a copy first. Then use the Cloning toolto remove the wing and the feet. Keep turning the Rhino layer back on to checkhow much retouching you need to do.

09 Once youre happy with the treatment of the bird, turn the Rhino layer back on and tweak the scaleand position of the rhino so that the edge of the bird outside the bottle and the edge of the rhino inside the bottlemeet in as seamless a way as possible. You may also need to rotate the rhino slightly to achieve this.

Alpha channels

Using a Clipping Path is probably theeasiest way to separate an object from itsbackground, but the best way to do this is to usealpha channels and create masks using brushes.You can use this technique to paint out hair andother really fine details effectively rather thanusing a clipping path.



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10 The rhino image is ultra sharp and detailed, mainly because of thetexture of its skin. We need to tone this down a bit so it gels better with thedetails of the other shots. Add a slight Gaussian blur from the Filter menuand set it to around 1 pixel or just below.

11 Now well add a little motion blur to simulate the distortion that a bottlecan give. Make a selection with the Marquee tool around the top and bottom ofthe rhino. Feather this selection at around 50 pixels, then use motion blur at90 degrees and a setting of 140 pixels.

12 Using the same feathered selection, apply the same level of motion blurto the Bird Copy layer. This will give it the same feel as the Rhino layer. Make aselection of the bottle again and create a layer mask for the Bird Copy layer towhich you just applied blur.

13 The sides of the rhino that join to the bird appear very sharp. These needto be blurred a bit to work with the bottle distortion. Do this by making aselection on the left and right sides and feathering to 35 pixels, then useGaussian blur till youre happy that it blends a bit better.

Duplicating layers

Always duplicate your layers so, if things get messy later on, you canrevert to a previous version without having to trail through your History palette. Itsalso useful to make a du plicate while working on key elements that you know youmight want to change later down the line.



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14 The highlights and tone of the bottle dont quite work with the bird and rhino imagery yet, because thetop of the bottle is very light. Duplicate the Bottle layer and create a layer mask to separate the bottom fromthe top, so that one layer is the bottle top and the other layer is the bottom of the bottle.

15 Use Levels on the upper half of the bottle and adjust the middle slideruntil the bottle becomes noticeably bluer and darker. The bottle is also f ar toosharp for the rest of the image, so add a Gaussian blur to blend it more intothe rest of the composition.

16 There are still a lot of highlights that seem too bright, so use the Burn toolto get rid of these with the setting set to Highlight and the Opacity to around 30%.Dont forget to experiment with both layers for the bottles.

Lighting

When compositing images, its a goodidea to try and get photographs that have similarlighting so they give the appearance of a seamlessimage when joined together. You can always adjustthe levels to get the right match but , for best results,your source images should be shot on the same dayin the same place.



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Adjustment Layers

Using Adjustment Layers to grade your images can make all thedifference at the final stages of th e project. Adjustment Layers enable you to makechanges throughout the process without destroying the original i mage, so you cango back and tweak to your hearts content.


17 Open the file DSC_3173.jpg. Were now going to add the first birdon the right to the composition. Cut it out and then drag it into the maincomposition, and flip the image so that the bird is facing in the same directionas the main bird/rhino. Place it behind the bott le.

18 Split the second bird into two halves using masks. For the part thatsinside the bottle, go to Filter>Distort>Pinch and play around with the minussettings so it distorts slightly. We havent done this with the rest of the imageas you cant really tell that its not distorted.

19 As a final touch, were going to give the image an overall grade.Create an Adjustment Layer by going to Layer>Adjustment Layer>Curves, andchange the curve to look like the one in the screenshot. Make sure the AdjustmentLayer is on top of everything else.

20 The final step is to add another Adjustment Layer: Selective Colours.Here you can control every colour with sliders. We want to make the blacksslightly off black by adding magenta and decreasing cyan. You can also playwith the whites to amend the overall tone and feel.


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Rinoceronte na garrafa