Xiaosi Zhai

Homework 2


Chapter 4

1.      Answer:  There are some kinds of equipment such as the Kodak box camera, Polaroid's instant photography, Single lens reflex cameras. The advantage is easier to restore and saves the natural resource.

2.      Answer:  In automatic mode, most digital cameras try to adjust exposure to make every picture average brightness. This may not be what you want if you are taking a picture of a bride, or a flamingo, or fireworks. The digital cameras using a lens with a variable diaphragm to focus light onto an image pickup device.  The diaphragm and shutter admit the correct amount of light to the imager, just as with film but the image pickup device is electronic rather than chemical.


3.      Answer: Main differences is that the point and shoot has small sensor, and fixed lens, whereas the SLR has bigger sensors and interchangeable lenses. Most of P&S cameras has electronic viewfinder or are rangefinder type, whereas all the SLR has optical viewfinder that shows the image the lens are getting.

4.      Answer: is a type of knob, ring, wheel, or dial which allows the user to shuttle or jog through audio or video media. A little switch on camera which helps you to switch between different mode in order to get a better shot


5.       Differentiate between digital and optimal zoom. Answer: Optical zoom gets up close and personal by using an actual lens adjustment and digital zoom adjusts the image in the camera itself (this figure shows the difference in the images you get



6.       Answer: a megapixel is equal to one million pixels. Because it decides the maximum pixel a camera can capture, also shows the camera’s function.

7.      Answer: With JPEG, you have a variety of options for saving the image, but it's necessary to exercise caution, because if you compress an image too much, the quality will suffer. It's necessary to use image processing software to test various different compression settings to see what will happen to the quality of the image


8.      Answer: The raw file type is easier to edit, you can Photoshop anything you want with the raw file type. It can always give you the best resolution the camera can get without any compressing, that way when you need to do any editing on this file, the output file can be in a higher resolution.

9.      Answer:

1. Always keep your camera away from water or any wet place

2. only use the camera on the sunny day, avoiding any use in the raining or snowing day

3. keep the camera in profession camera protection case after you use it

4.      Always keep your lens clean. This is especially the case if you have a digital SLR

5.      Avoid dropping your camera. As mentioned earlier, your camera contains sensitive equipment which may be destroyed by excessive shaking or impact.

6.      Turn off the camera before removing or disconnecting the power source or a cable or removing the battery or memory card.

10.  Answer: including a focal point, follow the rule of thirds, balance the image diagonally, shoot from a lower angle, include foreground.


             3. Edit Image 01 edit, 02 edit, 03 edit, 04 edit, 05 edit and 06 edit using image editing software, Use cropping, light and color adjustment on each image. Resize each Image. When finished, using image editing software, create an 800- x 800-pixel artboard for a collage, insert each image to form a collage, when you have finished placing all six images one the artboard, crop the collage to an appropriate size. Save as 4_Apply3_edited in JPG format LO4.3.


Chapter 5

1. Answer: The high contrast of complementary colors creates a vibrant look especially when used at full saturation. This color scheme must be managed well so it is not jarring.

Complementary colors are tricky to use in large doses, but work well when you want something to stand out. Analogous color schemes use colors that are next to each other on the color wheel. They usually match well and create serene and comfortable designs. Analogous color schemes are often found in nature and are harmonious and pleasing to the eye.


2. Answer: The Triadic color scheme is aptly named as it consists of three colors that are spaced evenly around the color wheel; when the colors are linked by a straight line, they form a triangle. The third color is used (along with black, white or gray) as an accent. Triad. A triadic color scheme uses colorsthat are evenly spaced around the color wheel.



3. Answer: the three most common color models in digital media. The three most common color models are RGB, CMYK, and HSB

4. Answer: RGB (red, green, and blue) RGB (red, green, and blue) refers to a system for representing the colors to be used on a computer display. Red, green, and blue can be combined in various proportions to obtain any color in the visible spectrum. Levels of R, G, and B can each range from 0 to 100 percent of full intensity.

5. Answer: determines how the components of a color are combined, based on the number of color channels in the color model. Color modes include grayscale, RGB, and CMYK, among others. Photoshop Elements supports bitmap, grayscale, indexed, and RGB color modes.



6. Answer: The phrase "out of gamut" refers to a range of colors that cannot be reproduced within the CMYK color space used for commercial printing. Graphics software is designed to work with images in the RGB color space throughout the editing process.

7. Answer: RGB stands for the colors red, green, and blue, the colors widely recognized in design fields as the primary colors. The RGB model is known as an additive model, where colors are added together to make up what we see on the screen. Basically, pixels on a television set or computer monitor create tiny pixels that, if viewed under a magnifying glass, are one of those three colors. Light is projected through them, blending the colors on the eye’s retina to create the desired colors.

CMYK, on the other hand, stands for the colors cyan, magenta, yellow, and black. CMYK is a subtractive model. This gets a bit complicated, but the idea with subtractive models like CMYK is that colors from the spectrum are subtracted from natural white light into pigments or dyes. These pigments, then, are printed onto paper in tiny little cyan, magenta, yellow, and black dots. If you were to take a magnifying glass to a magazine cover, for example, you would see that the main image is really just a bunch of dots spread out, some closer than others, to appear like the colors we want.

8. Answer: Adobe Color is integrated right within Illustrator and lets you create, save, and access your color themes. You can also explore the many public color themes available on Adobe Color and filter them in several ways: Most Popular, Most Used, Random, themes you've published, or themes you've appreciated in the past.

9. Answer: HSL and HSV(also refer as HSB) are both cylindrical geometries (fig. 2), with hue, their angular dimension, starting at the red primary at 0°, passing through the green primary at 120° and the blue primary at 240°, and then wrapping back to red at 360°. In each geometry, the central vertical axis comprises the neutralachromatic, or gray colors, ranging from black at lightness 0 or value 0, the bottom, to white at lightness 1 or value 1, the top.

10. Answer: Red can boost your energy, yellow often makes people feel happier, and blue is proven to bring down blood pressure and slow your heart rate which is why it is often associated with being relaxing. If you combine the happiness of yellow and the relaxing feel of blue you get green, a very pleasing colour for many people.


2. Use image editing software to create a new document that is the default size. Draw a variety of six shapes on your documents. They can be different shapes and sizes. Use a color theme, as discussed in the textbook, to fill each shape. Label the image with an explanation of your theme. Save as 5_Apply_themes. LO 5.4