čtvrtek 3. března 2016

Working with Images

HOMEWORK

1. Create a speaking avatar at http://www.voki.com/ and save it as txt,
and insert it into your index page.
Upload and refresh to check!

2. Make several photos  expressing the school atmosphere, choose the best one, edit if necessary. Insert the photo into your Homepage (index.html) and publish online.

3. Prepare 10 images which you will use in your vocabulary teaching HotPot project. Keep them in the original size + make the same set in web version (max size 40kb per image).

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It is easier and more satisfactory to use one's own images and photos instead of steling them from the web and risking troubles.

A teacher should be able to:
- draw a picture, scan, save and publish
- make a good photo which he/she can use in teaching, edit and save


The difference between good and bad photos is obvious to anyone! And it is not so difficult to follow several basic rules to make your photos better.





TASK 1
Look at the following photos. Do you like them? Why?

Do you like the photos presented HERE? Why?

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What shall we know?

1. How to compose a photography
Practical composition (in Czech) 

Practical tips:
concentrate on a single idea, object, feeling
get closer, fill almost the whole field with the target object/situation


2. How to save an image
raw - full data
jpg - compressed (lossy)
tiff - for print, usually lossless; can handle CMYK
bmp - full data (bitmap)
gif - small (and animated); saves only used colours; 8bit
png - lossless, successor of gif, 8-24-48 bit

For web, an image with the longer side of 1600px is big enough, Let's say the size limit is cca 50KB - to save space.
When reducing the size, always keep the original untouched! Save the small version as a new file, say, IMG2345_Small.jpg. 
JPEGS reduce the size exponetially, so if you reduce the original at 80%, the amount of data may be reduced form 12MB to 1,5 MB. 


More in Wiki (in Czech)
and Wiki (in English)


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The basic editing skills you should master:


1. Compressing, saving in various formats (with different extensions) and size
2. Crop (ořez)
3. Changing brightness, sharpness, hue and other basic features
4. Making a part of the image transparent


Tasks:
1. Open your image in Photoshop. Work with Crop first (C). Remember - the main part of the image should be taken by the main object (or idea, or situation)
2.  Use LEVELS to set the Lightning (Photoshop: Ctrl+L, or Obraz - přizpůsobení; Menu in Gimp: Enhance - Adjust Lightning - Levels)
3. Adjust sharpness. play with blur :)
4. Working with layers and masks in Photoshop:

Open the image
Duplicate the layer (Ctrl+J)
Choose the type of layers combination (Měkké světlo, závoj...)
Přidejte masku vrstvy (možnosti - odkrýt vše nebo skrýt vše)
Malujeme do masky!


5. Use GIMP: Find two images and combine them into one, applying transparency (e.g. Donald Duck walking through Usti nad Labem :) )
6. Advanced: Try to do the same in Photoshop: make a collage of two photos!
tutorial in Czech


TIPS
How to make things transparent in GIMP:
Layers – Transparency – Add alpha channel
Choose the background using the magic wand.
The simplest method is to use Edit → Clear

You can also test transparency in Word - add the image into text and choose Formát obrázku - pozice - před textem.

How to make things transparent in Photoshop:
New Image - Background transparent
Import the image into a new layer
Magic wand - choose parts which should be transparent
Layer - Mask - Hide the choice (Vrstvy - maska - skrýt výběr)


Want a top quality image legally?
Visit Getty.


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TASK 2
Choose an object within the class and make a picture which shows only the object - as if you needed an illustration of the word.

What shall we know?
3. How to make a photo of an isolated object
check the background
fill amost the whole image with the object
search for light
use simple aids, such as lamps, scarfs, sheets of paper
experiment 
Link to Product Photography at digineff

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... want to know more?

"Kreativní fotografie si neklade za cíl zobrazit realitu (takové to tam Mařenko bylo) ale zobrazit 
něco víc. Zobrazit emoce (pocity, nálady ...), které autor na místě cítil a chce vám předat.
Když se díváte na fotografie z vaší dovolené obvykle si vybavíte pocity, jaké to tam bylo (jé podívej - tady jsme byli ...). Díváte-li se ale na fotografie z cizí dovolené, vidíte jenom obyčejné pláže, hrady, zámky atp. Prostě emoce spojené s místem a zážitkem vám chybí a proto vám často tyto fotografie připadají obyčejné. Dobrá fotografie vám dokáže předat pocity a zážitky i z míst, kde jste nebyli. A o tom to je...
Když stojíte v lese, vidíte široko okolo sebe, vnímáte vítr, šumění lesa, vůni jehličí a do zad vás pálí slunce. Toto vše na fotografii však chybí. Je tam jen obrazový výsek a to ještě ve 2 rozměrech (3 rozměr prostoru / perspektivy chybí). A proto je to tak těžké. A proto je pokoušet se o to taky tak krásné!"





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