Tag Archives: image retouching

High pass an Old Man

The high pass filter is often overlooked as a method of sharpening in Photoshop perhaps because it is not grouped with the other sharpen filters hidden away as it is in the “other”  section of the filter menu.  Of course sharpening really is increasing the contrast of neighbouring light and dark pixels. The typical implementation of the filter is to duplicate the background layer apply a low pixel radius high pass filter and change the blending mode of the layer to overlay and adjust the opacity of the layer to taste.  The soft light blending mode has a less harsh sharpening effect and hard light and linear light have harsher effects.  I find the filter useful for sharpening images that have well defined edges already such as architectural images and less so for portraits as it can be quite unflattering, incidentally an inverted high pass filter is useful for portraits for a quick smoothing of skin (used with layer mask and low opacity layer).  In the example here I used the filter to exaggerate the lines on the old mans face, I duplicated the high pass layer a few times and also used a number of other blending mode techniques to desaturate and tone the image.  As with all blending modes a little experimentation can yield pleasing results……




Cheers Colin

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Posted by on May 26, 2010 in Image Editing, Photoshop, Retouch


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Graffiti A Wall with Vanishing Point

When adding an element, such as text, to an image you can use the transform perspective command to match an existing plane within that image, however an easier and more accurate method is to use the vanishing point “filter”.  It’s under the filter menu but it doesn’t act like a filter, it’s more like a match perspective tool.  The tool is very useful if you wanted to superimpose an image onto a laptop screen, particularly if that screen is at an angle.  In the following example I will superimpose text (spray graffiti) onto the side of a building, CFC free.

  1. Open the image you want to be your background.  Use the type tool to type your graffiti.  Format the text as close to the final size as possible, I chose a font called Newrus.
  2. Once you are happy with the size and spacing of your text, rasterize the text, note you will not be able edit the type after this stage.
  3. Choose Select > Select All, and then Edit > Copy.  You can now delete the text layer as you no longer need it.  Create a new blank layer.
  4. Under the Filter menu go to the Vanishing Point filter.  Using the Create Plane tool define the Plane or perspective you want to match by selecting the four corners of that plane.  The Plane grid turns blue when the plane is a valid one.vanishingpoint2
  5. Now paste the rasterized text (Ctrl/Apple V), use the transform plane tool to place the text where you want it, you will notice that once you move it close to your defined plane it will snap into the desired perspective, scale your text as needed . Hit OK.
  6. You can now blend to match your background using a blending mode, the mode I used here was the overlay mode.  You could also apply a texture to it to blend it further.  Flatten your image.  vanishingpoint2a

Posted by on July 14, 2009 in Image Editing, Photoshop


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