by Competition Secretary | Dec 1, 2015
The following High-Pass sharpening procedure can be undertaken in either Photoshop or Photoshop Elements but should be done after you have completed all of your processing. It is not always the case that you want to sharpen everything in your picture. The reason the High Pass filter technique works so well at sharpening images is because any areas in the image which are not an edge are left untouched. The only areas that have sharpening applied to them are the edges, which is exactly what you want, To achieve this you create a high-pass sharpening layer and layer mask and use the brush tool sharpen only those parts I want sharpened. The process is as follows images shown are for Photoshop but Elements is similar. :- Duplicate Layer Once you have finished working on your image the final step is to sharpen the places that require sharpening. The first thing we need to do is to make sure we have a layer at the top showing the final image. this could be the background layer as you have flattened your image or you have merged visible. I can see in my Layers palette now that I have my original Background layer at the bottom, which contains my original pixel information, and the duplicate of it, which Photoshop automatically names “Layer 1”, above: Change The Blend Mode Of The Duplicate Layer To “Overlay” Next, we need to change the blend mode of the duplicate layer from “Normal” to “Overlay”. The reason is that the High Pass filter is going to turn all non-edge areas of the image into neutral gray, and the...
by Competition Secretary | Nov 27, 2015
The following steps are a guide to those of you who have Photoshop and would like DS Colour labs to print off your images. This is the way I do it, but others might have another ways. Basically I create a new document in Photoshop and paste my image onto the new document. I then brightened the image and save it as a JPEG, then I download it onto the DSCL site. So this is how I do it. Go to the DSCL website and find the printing size you want, write down or remember the size needed. As a rule I use the 12X16” print size or smaller. Open up your image in Photoshop, making sure it is processed and to your liking. Open up a new document in Photoshop by going to file – NEW- Name the new document as required. Change the Width to inches and Height to inches, Change the values in each to those you want for printing for example 12×16”. Change resolution to 300. Colour mode should be RGB and Background contents should be White. Go to your image and flatten your layers. Now select (CMD A) your image and copy (CMD C). Go to your new document and paste (CMD V) your image into it. Your image should be larger than the new document in which case Free Transform (CMD T keeping the perspective) your image and resize as required. Once re-sized brighten your image by at least +10 using a brightness and contrast layer. The reason for doing this is because our monitors have light at the back of them and...
by Competition Secretary | Nov 22, 2015
Remember before mice we used to use a keyboard well many programs stil have keyboard short suts that can improved your workflow see http://www.setupablogtoday.com/adobe-photoshop-keyboard-shortcuts/ http://www.setupablogtoday.com/adobe-creative-cloud-cheat-sheet/ http://www.setupablogtoday.com/adobe-lightroom-keyboard-shortcuts-cheat-sheet/...
by Gary Wood | Nov 27, 2014
Following on from last nights theme of How do I do That Dave Carter has submitted the following like to an article on Photographic Distortion And Perspective Correction...
by Gary Wood | Nov 24, 2014
Not 50 shades of grey I hasten to add During the recent Show & Tell session various techniques were discussed about how to lighten or darken an area of an image aka Dodge and Burn. One technique that seem’s to be used a lot with varing success particularly on sky’s when the original image really needed a graduated ND filter, is to select the sky, apply a large feather selection and then create a levels adjustment layer in which you move the black point on the histogram to the right to darken. This technique is often then followed by inverting the selection, creating a new levels adjustment layer and then moving the white point on the historgram left to lighten the foreground. The disadvantage of this technique is if you over do it by moving either the black or white point beyond the ends of the histogram you tend to leave a halo effect along the selection boundary i.e. An alternative method which has been discussed before is the 50% grey adjustment layer with an overlay blend mode. Martin Godfrey discribed this method last season as a way of implementing a non distructive Dodge and Burn. To recap I will discribe this in relation to Adobe Photoshop elements. Open your image in PSE Create a Solid Colour Adjustment layer Select the colour In the layer pallette you should now have You can simplify the layer The Layer pallette should now look like Set the blend mode to Overlay (Soft light has a similar but not quite so dramatic effect) If the colour you selected for the solid colour was...
by Gary Wood | Nov 16, 2014
In digital photography, exposing to the right (ETTR) is the technique of increasing the exposure of an image in order to collect the maximum amount of light and thus get the optimum performance out of the digital image sensor. The name derives from the resulting image histogram which, according to this technique, should be placed close to the right of its display. Advantages include greater tonal range in dark areas, greater signal-to-noise ratio (SNR), fuller use of the colour gamut and greater latitude during post-production. ETTR images appear to be overexposed when taken and must be correctly processed (normalized) to produce a photograph as envisaged, therefore care must be taken to avoid clipping within any colour channel, other than acceptable areas such as specular highlights. (see WikiPedia for full definition) I’m not going to write an article on a technique that has been written about hundreds of times before and can be found by just by doing a Google search for “exposing to the right” But for those who can’t google here’s some Digital Photography School Cambridge in Colour Luminance Landscape Digital Camera World SLR Lounge DPReview ScrewePhoto Online Photographer Martin Bailey...
