Photoshop VS Gimp

Photoshop Tutorial:

ACA exam objectives:
The questions on the Photoshop ACA are organized into 5 topic areas:

1) Setting project requirements.

It contains four objectives:

  1. Identify the purpose, audience and audience needs for preparing images.
  2. Demonstrate knowledge of standard copyright rules for images and image use.
  3. Demonstrate knowledge of project management tasks and responsibilities
  4. communicate with others, such as peers and clients, about design plans.

2) Identifying design elements when preparing images.
The six objectives here are:

  1. Demonstrate knowledge of image resolution, image size and image file format for web, video and print.
  2. Demonstrate knowledge of design principles, elements and image composition.
  3. Demonstrate knowledge of typography.
  4. Demonstrate knowledge of color correction using Photoshop.
  5. Demonstrate knowledge of image-generating devices, their resulting image types and how to access resulting images in Photoshop.
  6. understand key terminology of digital images.

3)Understanding Photoshop
there are five objectives in this topic area:

  1. Identify elements of the Photoshop user interface and demonstrate knowledge of their functions.
  2. Demonstrate knowledge of layers and masks.
  3. Demonstrate knowledge of importing, exporting, organizing and saving.
  4. Demonstrate knowledge of producing and reusing images.
  5. Demonstrate an understanding of the features and options in a color management workflow.

4) Manipulating images with Photoshop
there are eight objectives here and they test the users whether know the Photoshop features or not.

  1. Demonstrate knowledge of working with selections.
  2. Use Photoshop guides and rulers.
  3. Transform images.
  4. Adjust or correct the tonal range, color or distortions of an image.
  5. Demonstrate knowledge of retouching and blending images.
  6. Demonstrate knowledge of drawing and painting.
  7. Demonstrate knowledge of type.
  8. Demonstrate knowledge of filters.

5) Evaluating digital images with Photoshop.
And it has just one objective.

  1. Demonstrate knowledge of preparing images for web, print and video.

Preparing images for the web

For the Photoshop ACA exam, one should also know how to use the Export As dialogue box which we looked at in an earlier movie.

In this exercise, there is an image of a rabbit in black pixels on a transparent background.
This post talks about some of the options for exporting images from Photoshop to the web especially using the Save for Web dialogue box.

The goal is to save the image for the web. Before doing so, the image must be scale down to an appropriate dimension.
By changing the quality of the image, and with changing the format into JPEG.


Working with document templates

Using Templates allows you to make new documents with any desired properties very quickly and easily.
And in this post, it introduces:

  • how to use the Templates dialogue to create a new custom image
  • hot to edit a new custom image template.
  • For create a custom template in the Templates dialogue, what needs to do is goes to Windows, Dockable Dialogues, Templates.
  • Then you can see a list of the available templates that can be used to create a new template.
  • All you have to do is choose the template you want and double click it.
  • There are also buttons to create a new template, to duplicate a template, to edit a template, and to delete one.
  • Once you want to edit the name of a template, you can just double click on the name and type down the new name.
  • And if you want to edit the icon for the template, also double click the icon here.
  • Or by clicking the template at once, then choose“ Edit Template”, and entering the number you would like to adjust. Finish this step with click “OK”.

Saving selections

By saving selections, you can avoid having to recreate a selection every time you need it.
This post tells us the two basic ways of saving selections:

  1. re-activating saved selections
  2. Saving selections as channels.

The first one is pretty simple, the only thing you need to do in order to do is to leave the selection active when saving and close the file.

The second is to save the selection as a channel.
To do that, just go to the select menu, and choose save to channel.

In the channels dialog, the saved selection will display as an extra channel.

In conclusion, this post introduces both Photoshop and Gimp’s function and some skills while utilizing them.

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