Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
Six iPhoto Editing Tricks You Cant Do Without
Tricks that let you edit pictures in iPhoto easily and fast:
iPhoto, while aimed at the amateur photographers, is a powerful tool that can offer great amount of control to even the professionals. With streamlined workflow and smooth navigation, working in iPhoto gets even easier with the following tips.
1- Creating an editing shortcut
Imagine how convenient it gets when you click or double click on a picture and it gets zoomed in or opens in the editing mode. With iPhoto, this convenience comes real. The trick is to use ‘Preferences’. Open the window and check the option for ‘Magnifies’. This way, when you double-click on the image, you get its bigger version. When you want to edit the image, press Option key and double click. The image opens up in the editing mode. Alternatively, use the Editing option from Preferences much as you did for ‘Magnifies’ and you can open images in editing mode by simply double clicking on them.
2- Zooming Quickly in Editing Mode
Processing images requires one to focus on details and fixing them when required. This requires a lot of zooming in and out. You can now do this easily with a tap of a single key. Once in the editing mode, press the 1 key and the image zooms into to a 100% view of the spot you want to see. Press 2 and it gets a 200% view of the same spot. Press 0 to come back to the normal view. This shortcut comes in handy when you want to check the sharpness or have to fix few spots that you can not observe in the normal image size.
3- Recovering blown highlights
There are many reasons why professionals advice photo enthusiasts to use RAW mode while capturing images. RAW offers a lot of flexibility and control on the output and one of its most useful features is how you can control blown out highlights.
Adjust palette has what we can call a hidden Recovery slider. This slider helps in restoring details in blown out areas. Recovery slider is far more useful than the ordinary Highlight slider, which tends to take away the vividness of the image while trying to recover details.
To use recovery slider, find a RAW image and open it in iPhoto. Go to editing mode and open the Adjust Palette by pressing A on the keyboard. Hold down the Option Key to convert the Exposure slider into a Recovery Slider. Now use this slider to restore the details that you want.
Adding more Vibrancy to a Dull Scene
Sometimes just by increasing the intensity of the colours, you can get some amazing results. Many high end image processing software such as Adobe Camera Raw, Lightrooom or Photoshop offer what they call ‘Vibrancy control’. This control lets you play around with the richness of colours, without tweaking other aspects such as sharpness or contrast values. What is more exciting about this control is the skin tone preservation that doesn’t change the tonal value of the skin. This option doesn’t exist if we simply increase the colour saturation.
iPhoto offers a Vibrancy slider that you don’t see in the normal lay out. To activate it, check the box “Avoid Saturating The Skin Tones”. This check box lies under the Saturation slider. Once checked, the Saturation slider changes into a Vibrancy slider. Now slide the controls to get the desired results. The results vary significantly. The skin tone is preserved and images look far better with Vibrancy.
Enhancing the Enhance tool
This got to be one of the most useful tips. Enhance tool can be the difference between a good picture and a dazzling one. It’s a single click function that automatically detects the best configuration for the various sliders and changes the entire image into something exciting. Not only that, you can further manipulate the sliders to get exactly what you want.
To enhance the picture, open the Adjust palette when in Edit mode. Now with Adjust open, click on the Enhance tool which is the magic wand icon and is place to the left of the Red Eye. Once you click on the Enhance icon, you will see the sliders change values. You can further change values if you think the results were not what you wanted.
See before and after
Being able to see the results and differentiate from the original image gives users the power to identify the changes that the various settings generated. While undoing to a point of the original image can be too long a process and prone to mistakes, iPhoto offers a single key function to see the ‘before and after’ images.
Simply tap Shift to see the original image and leave it to see the image with changes.
While working with these tips, remember that iPhoto lets you go back to the original image at any point of time. To do that, simply open Photos tab and click on Revert.