Sunday, May 2, 2010

Painting on Wall Photo Manipulation


Step 1 - Create a new image

To begin, let’s create a new file, go to the Menu bar and click on File > New and find the Preset drop-down menu and click on A4 on the contextual menu or you can input the A4 settings manually:

Width: 2480 pixels
Height: 3508 pixels
Resolution: 300 dpi
Color Mode: RGB Color; 8bit
Background Contents: White


We would need a landscape canvas so we would need to rotate the newly created layer; so as the layer opens, go to Image > Rotate Canvas > 90’ CW.

Step 2 - Correct the perspective of our background

In this step, we would be opening “Grotty street stock” to our canvas and we would be fixing its asymmetrical perspective. So open our street stock from the folder you’ve saved it into and drag that image using the Move tool (V) to our A4 canvas.

Take a look at our image you’d notice the lopsided angles on the window and on the street which are produced by the camera, these lopsided angles are often called Barrel Distortion. There are a lot of ways on how to correct barrel distortion on an image, like using the Lens Correction Filter of Photoshop to downloading software that could do that specific job, but on this tutorial we are going to use a simpler way and that is through the use of the Warp and Liquify tool.

Note that you may do as you please, but here we will be learning how to use the Warp transform tool and the Liquify tool in correcting distorted images.

To start duplicate “Grotty street stock” by pressing Ctrl/Cmd + J, this should create a backup when you make mistakes from the transformation. We would need to resize the image since we won’t need the extra window on the left. Activate the Transform tool by right clicking on the image.


Activate the Transform tool again and as the contextual menu pops up, click on Warp. Once you’ve clicked on it, a grid with 9 squares will form around the image.


For more precision and accuracy in the Warp process, we would need a measuring tool and that would be Photoshop’s Ruler. Activate the ruler by pressing Ctrl/Cmd + R. We would need to create guides from the ruler to make this process easier. See image below for further instructions:


We would be starting the Warp process, take a closer look at the images below:


After that, the image should be similar to the image below:


Note: You may remove the guides by clicking on View > Clear Guides.

Now, you’d notice that the distortion is partially repaired. For the next part, we would be utilizing the Liquify tool. Activate it by pressing Filter > Liquify from the Menu bar. When the box opens input these values on the Tool options bar.

Brush size: 270
Brush density: 50
Brush pressure: 100


Lastly, activate your Warp tool because we would need to fix some minor errors.


Now we’ve finished correcting the distortion and the final result should be similar to the image below:


For organizational purposes, rename your layer to “background”. To rename, you just have to double click on the text that says “layer 1” and then a Type box would appear and you may now rename it

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