1. Image Processing Developing Pictures In the Dark Room

2. What Did We Do? We made a picture by using a pin-hole camera. A pin-hole camera is simply a camera using film paper and a metal container, such as a can.

3. How a Pin-hole Camera Works Pin-hole cameras have a small hole on the side that only allows a single ray of light from each point on an object to pass through the hole, so that it is imprinted on the film paper inside the can.

4. What Happens In the Dark Room  There are two sides in the dark room, a dry side and a wet side.  After taking a picture, you go to the wet side and dip the film in a set of chemicals that develops the picture.

5. WET SIDE PROCEDURE Work LEFT to RIGHT (keep emulsion side UP) Developer (1 minute) Water Rinse (1 minute) Water Rinse (2 minutes) Fixer (2 minutes)

6. What Happens In the Dark Room  There are two sides in the dark room, a dry side and a wet side.  After taking a picture, you go to the wet side and dip the film in a set of chemicals that develops the picture.

7. What Happens In the Dark Room  There are two sides in the dark room, a dry side and a wet side.  After taking a picture, you go to the wet side and dip the film in a set of chemicals that develops the picture.  After the film has gone through the wet side, it is a negative, so you take it to the dry side to make a positive. We use an Enlarger to make a positive.

8. THE ENLARGER

9. Using the Enlarger  Put the film that you took a picture with face down on another strip of film.  Cover the two strips with a glass cover.  Turn on the machine for a set amount of time, about 20 seconds.  Remove the glass cover and the negative and you have a positive.

10. What We Learned  We learned about the pin-hole camera, a simple camera that takes black and white pictures.  We learned how to make a positive out of a negative by using a machine called the Enlarger.  We learned about the process of making photos in the dark room, and the chemicals involved in making it.

11. Practical Applications for Image Processing  Real life - you’ve taken pictures with a camera haven’t you?

12. SMILE!!!