Wednesday, December 28th, 2011

Quickly access Excel 2010 formula requirements


Ok.. so you want to use an Excel formula and you know it is, say, SUMIF that you want to use, but what data does it need and where?

Before you go searching through help or cranking up your browser, let Excel do the work for you. Just type =SUMIF in a cell and press Control + Shift + A and Excel will give you the list of data required. It’s dead simple and it saves heaps of time.

 

Helen Bradley

Friday, December 16th, 2011

Blow it Up with Alien Skin Blow Up 3

I’ve never used an upsizing or enlarging program before. Instead, when I need to enlarge an image, I perform the age old trick of increasing an image’s size by 110 percent multiple times in Photoshop to enlarge it. It seems to do a reasonable job of the enlarging process.

However, recently I was offered Alien Skin’s Blow Up 3 to test – since the folks at Alien Skin make some really cool applications I thought I’d give Blow Up 3 a try. I actually had an image that needed of blowing up for a magazine article. The image I had was a totally cool image but from a very old camera phone so it was a tiny 479 x 640 pixels in size. Not only was it very small but it had some very obvious jpg artifacts so when I enlarged it 300 percent it showed not only those artifacts at an enlarged size (the result was horrible) but the image also showed some distinct pixelization.

This was a perfect image to try out with Blow Up 3 – if I succeeded with the task the image would be acceptable quality for the magazine, if not, I needed to find something else.

Alien Skin Blow Up 3 with Lightroom

I had already installed Alien Skin Blow Up 3 for Lightroom, so running it is as simple as right clicking the image in Lightroom and choosing and choose Edit In > Blow Up 3. You get a choice of opening the image from Lightroom either as a copy with Lightroom adjustments, you can edit a copy or edit the original. You just select the option to use and click Edit and it opens automatically in Blow Up 3.

Blow Up 3 really couldn’t be easier to use. In fact I was a little confused at first because I kept looking for more options where there really weren’t any. I selected the Before/After option at the foot of the main screen so I could see the before version on the left and the after version on the right. I wanted to see as I worked just how effective the program would be. I then selected the Crop & Resize option and set it to Percent. I selected 300 percent for width and height and a resolution of 300 pixels per inch.

With the Before/After view on the screen, it was clear that the result would be a significant improvement for this image. The settings you can choose from include grain and sharpening. I checked out the grain slider. For this image, if I didn’t add grain, the jpg artifacts were still very apparent and they really detracted from the image because they were so visible. I opted to add a lot of grain to the image so I set the value to around 30 to soften and blend the artifacts.

I also checked out the Sharpen Edges setting to see how that would affect the image. For this image, I really didn’t want a lot of sharpening so I opted to set it to 40. This gave me some sharpening around the edges such as in her eyes but not really obvious haloing which the higher values produce.

Then, it is as simple as clicking Ok to blow up the image and be taken back to Lightroom where the blownup version appears in the same folder as the original so I found it alongside the original in the filmstrip.

From its original size the image is now nearly 1500 x 1900 pixels in size well suited to being used in a magazine and way more pleasing to look at than it was originally – sans artifacts. If you need to enlarge images significantly this application has the goods.

Helen Bradley

Thursday, December 8th, 2011

Things to know about Lightroom Collections

Collections in Lightroom are a key tool for organizing images. There are some benefits to working with collections and some things that it helps to know about working with them.

Collections: Smart or regular?

There are two types of collections in Lightroom, Smart Collections which are populated according to a filter which you define to identify images that you want included in that collection. For example, a Smart Collection might be defined as 5 star images which have a keywords that include the word Rome.

Smart Collections are dynamic so if an image no longer matches the filter you have defined for that Smart Collection it will be removed automatically from it. Likewise, newly imported or edited images which fulfill the criteria will be added automatically to that Smart Collection.

Regular Collections are collections that you populate with images that you choose to put in them. Images remain in these collections until you chose to remove them.

Sorting images in collections

You can sort images in order in a regular collection but you cannot reorder images in a Smart Collection.

Target Collection

You can set a regular collection – but not a Smart Collection – to be the Target Collection. There can be only one Target collection and to make a collection a target collection, right click on its name and choose Set as Target Collection.

In future, you can add images to the Target Collection by pressing the letter B. Press the letter B again to remove the image from the Target collection.

You can identify which collection is the target collection by the plus (+) symbol which appears after its name.

If you deselect the current Target Collection by right clicking its name and disabling Set as Target Collection then the Quick Collection, by default, becomes the Target Collection.

 

Gather images without duplication

One of the benefits of using collections to organize images is that the images in a collection can come from any location of your choice. You can create a collection of images from a number of different folders or even drives on your computer. Collections are simply a pointer to the original image, not the original image itself, so they require little additional space on your computer to store them. An image can belong to multiple collections and it will still only exist in one physical location on your computer.

Where is that image?

To find where an image in a collection is stored, right click on the image and choose Show Folder in Library to go to the folder in the Lightroom catalog. Alternately, choose Show in Explorer to see it in Windows Explorer (Show in Finder on the Mac).

 Collections not in the Collections Panel

While most collections are listed in the Collections Panel, there are some collections that are not. In the Catalog panel you will find the All Photographs collection which is a collection of all the images that you have in your Lightroom catalog.

Quick Collection is a temporary collection that you can create as needed.

Previous Import is a collection containing the images in the most recent import – it changes every time you import new images into Lightroom.

Added by Previous Export is a collection of those images that were most recently added to the Lightroom catalog as they were exported from Lightroom. There is an option in the Export dialog that lets you automatically import exported images back into the catalog.

Three Handy Collections

There are three handy collections that are automatically created by Lightroom and which appear in your Smart Collections set. The Without Keywords smart collection contains every image in your collection that does not have keywords associated with it. It’s a handy reminder of the keywording work you still have to do.

Recently Modified is a collection containing images that have been modified within the last two days. You can alter the date range by right clicking the collection, choose Edit Smart Collection and change the number of days listed. You’ll see that by default it reads Edit Date… is in the last…. 2….days. You can change Days to Hours, Weeks, Months or Years and change the physical number from 2 to any number of your choice.

The Past Month collection is all the images that you have shot in the last month.

Managing temporary collections

If you often make collections that you only want to keep for a day or two to complete a particular job, either create a Collection Set to contain them or add the word “temp” to the collection name. This makes it easy to see collections you can easily delete to remove clutter from your Collections panel.

Helen Bradley

Monday, December 5th, 2011

Work in the Lightroom Quick Develop panel

 


In Lightroom you can fix a series of images all at once using the Quick Develop Panel in the Library Module. While this tool lacks the precise adjustments you can make to an image in the Develop Module, it offers a quick solution for getting started fixing your images.

To make use of the Quick Develop panel you should be working in the Library Module, in Grid View. So open the Library module and click G to select Grid view. If you are in Loupe view the changes you make will be applied only to the most selected image regardless of how many images you have selected in the Filmstrip.

If you typically use the Auto Tone feature in the Develop module to quick start fixing your images, select all the images to fix in grid view and click the Auto Tone button. Every image will be assessed and then adjusted according to its particular needs.

How fixes are applied

In the Quick Develop module, when you choose to adjust, for example, the Exposure on a series of selected image, each image will be adjusted by the same relative amount. So, if you select a series of images and click the single right pointing arrow, you will add +0.33 to the current Exposure value for each image. So, if an image had a starting Exposure setting of 2.00 it will be increased to 2.33. The single left pointing arrow moves Exposure -0.33. If you click the double arrows you will increase or decrease exposure by 1.0 for every image. Each adjustment works in a similar way although the relative values will vary.

One feature of the Quick Develop module which is useful is the White Balance tool. If you have a series of images all shot in similar light you can select them and adjust the white balance for all of them by choosing a different White Balance setting from the dropdown list or by adjusting the Temperature (Blue/Yellow) and/or Tint (Green/Magenta) sliders.

Hidden Options

There are some options hidden in the Quick Develop panel. If you hold the Alt key (Option on a Mac) the Clarity and Vibrance adjusters change to allow you to adjust Sharpening and Saturation. Notice that Sharpening is an all in one setting and that it lacks the ability for you to alter the Radius, Detail and Masking which you can do with the Detail panel sliders in the Develop module.

How I use it

I use the Quick Develop panel to make quick edits to a series of images at one time. I’ll assess the images to see if they need a particular adjustment such as increasing the Exposure if they are all a little underexposed. I also like to increase Clarity and Vibrance.

So, I’ll select the images in the Grid, click to increase Exposure and then again increase Vibrance and Clarity.

Using the Quick Develop panel to make fixes to all images saves me a little time later on when I switch to the Develop module and apply additional fixes on an image by image basis.

One Gotcha to be aware of

If you want to remove the settings applied to an image you can do so using the Quick Develop panel. Select the image and choose Reset All. However, be aware that when you do this, you will remove not only all settings applied to the image using the Quick Develop panel but also any changes made to it using the tools in the Develop module.

 

 

Helen Bradley

Friday, November 25th, 2011

Craft great Black and white images in Lightroom

Most of us know we can convert and image to black and white in Lightroom by simply pressing the letter V. However, for the exact same image, your version of Lightroom might give a very different result to my version of Lightroom. The explanation is that there are two settings available for black and white conversions in Lightroom.

I’ll show you what these are, how to configure the one you want to use and how to quickly switch between them.

With a color image on the screen in Lightroom’s Develop module, press the letter V to convert it to black and white.

Open the B&W panel – it’s called Greyscale in Lightroom 2 – and check out the color sliders.

Depending on the preferences that you have set, the sliders might all be set to zero or they might show a black and white adjustment tailored to the image itself which Lightroom calls Auto mix.

The auto mix adjustment applies an auto exposure adjustment to the image as well as a conversion that maximizes the distribution of the grey tones in the image. This is customized for the image so every image will be given a custom adjustment much as you will get if you click the Auto Tone button in the Basic panel. Notice the subtle differences in the histograms in each of the adjustments here.

Whether or not you see this Auto mix applied to a black and white image is controlled by your Lightroom preferences. To see these, choose Edit > Preferences (or Lightroom > Preferences on the Mac), select the Presets tab and there’s an option there which reads “Apply auto tone mix when first converting to black and white”.

If this is checked you will get the auto tone mix applied to the image, if not, you will see a black and white adjustment where each color is given the same adjustment value of zero.

Regardless of which setting is in place you can switch between the two in the B&W panel.

If an Auto mix has been applied, hold the Alt key (Option on the Mac) and you will see an option Reset Black and White Mix. Click this and all the sliders will be set back to zero.

On the other hand, if your sliders are all set at zero, click Auto to apply the auto mix adjustment to the black and white image.

Step 5

You can further adjust the black and white regardless of whether you have an auto mix applied automatically to it or not by adjusting the sliders.

You can also select the Target Adjustment Tool and drag on an area of the image to adjust whether it is light or dark. Dragging downwards will darken it, dragging upwards will lighten it.

 

 

Helen Bradley

Wednesday, November 23rd, 2011

Lightroom’s Selected and Most Selected Images

One of confusing things when you’re getting started in Lightroom is understanding the concept of selected images and the most selected image in Lightroom.

Step 1

To see this at work, start in the Library module and press G to move to Grid view. Click on any image to select it and Shift + Click on another image. You’ll now have a sequence of images selected.

Notice that in both Grid view and on the Filmstrip the first image that you selected has a lighter border around it than all of the other selected images and notice that the unselected images have darker borders.

The image with the lightest border is the most selected image and it is the image that will be affected by changes that you make to various settings, in particular when you are working in Loupe view with multiple images selected.

Step 2

What you have selected in Lightroom and the view you are in impacts how changes are applied to an image.

In Grid view if you select the Quick Develop panel and choose a different white balance setting then all the selected images that are selected will be altered.

Step 3

However, if you are in Loupe view and if you make the same change only the most selected image will be altered and not all the selected images.

Grid and Loupe view work very differently and it’s important to understand, particularly in Loupe view, that when you have multiple images selected, there is one that is most selected.

Step 4

When you have all images in a folder or collection selected it can be difficult to see just how to deselect the images. To deselect a selection, click outside the thumbnail area of any of the selected images in an empty area of the cell it is in. This deselects the current selection so only the image that you just clicked will be selected.

 

 

Helen Bradley

Thursday, November 17th, 2011

Save space – Compress your images in Word

A reader just asked if they added 50 images to a Word file would that blow out the file size when they send it to their colleagues. Answer: Yep! big time.

Most specially if you use your your beaut iPhone to capture the images, or a good compact camera or if you just insert big pictures. You see, unless you do something those big pictures will be inserted in the file and included in it when you save it – you can end up with a monster Word file (think 5Mb x 50!)

The solution to the problem is to compress the images. To compress all the images in your Word 2010/2007 file so that they take less room, click on any image and choose Picture Tools > Format tab.  Locate the Compress Pictures button and deselect Apply only to this Picture so all images will be compressed.

If there is an Options button click it to see the sizing options (this appears in Word 2007 but not in Word 2010). Then choose the Target output – typically Screen or Print are good options as they will view well and print just fine. Check the Delete Cropped Areas of Pictures checkbox so cropped data won’t be saved. Click Ok. Then save the document.

This compression feature will reduce your file to a better size for sharing without compromising the quality of the document. And the changes affect only the images in the document not the originals on your disk.

Helen Bradley

Monday, November 14th, 2011

Photoshop – convert a black background to white

I was recently asked how to convert the background of an image from black image to white. It isn’t a trivial task so it got me thinking. One of the problems is that things shot against a black background actually pick up black or dark reflections so it’s not enough to merely remove the black – you also have to solve some of the reflection problems as well.

This method won’t work on every image but provided the subject is well lit so there are minimal dark reflections to deal with, it is quick and effective.

Step 1

Start by making three copies of the background layer of the image by right clicking it and choose Duplicate Layer three times.

Set the top layer’s blend mode to Color and the second top layer’s blend mode to Lighten.

Step 2

Target the third top layer and choose Image > Apply Image. Set the Channel to Red as it is typically lightest in the areas where the data is that you want to retain. Select Invert and make sure the Blend mode is set to Normal. You will see the image now with the background removed. Click Ok.

Step 3

Now all you have to do is to tidy up the problems. Typically this is problems with color or the edges. For this I make yet another duplicate of the background layer and drag this to the top of the layer stack. Make a rough selection of the background using a tool like the Quick Selection tool and then hold Alt (Option on the Mac) as you click the Add Layer Mask icon at the foot of the layer palette. You can now use this layer to add color or to fix other problems.

In this image I reduced the opacity of this layer to around 30% to bring back some missing detail in the flower.

I also added a new layer, set its Blend Mode to Color, sampled some color from the flower and painted over some of the petals where they showed pink once the black was removed.

The image is © Lars Sundstrom from sxc.hu

 

 

 

Helen Bradley