EP1000

Digital Fab & Prototyping Fundamentals

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Computer Graphics

Computer graphic can be classified into 2 groups

Raster	Vector
Deals with images with pixels on a screen. Mainly used for rendering images i.e. photographs. The size of the image is represented by the pixels it has by its length and width. The image when zoomed in will become blurry but it will be possible to see each pixel that makes up the image. Some software used for editing raster images are GIMP, Photoshop and MS Paint. File formats for rasters are PNG and JPEG/JPG	Uses paths, points, curves and polygons to model the image. With the use of mathematical functions or algorithms it will display the image on the screen. The vectors have clean edges and so if you zoom in there will be no distortion. Used yo format logos, posters, signs, etc. Software used for vectors are Inkscape and Illustrator. Some common vector file formats are .dxf, .svg and STEP

Raster

Vector

Deals with images with pixels on a screen. Mainly used for rendering images i.e. photographs. The size of the image is represented by the pixels it has by its length and width. The image when zoomed in will become blurry but it will be possible to see each pixel that makes up the image. Some software used for editing raster images are GIMP, Photoshop and MS Paint. File formats for rasters are PNG and JPEG/JPG

Uses paths, points, curves and polygons to model the image. With the use of mathematical functions or algorithms it will display the image on the screen. The vectors have clean edges and so if you zoom in there will be no distortion. Used yo format logos, posters, signs, etc. Software used for vectors are Inkscape and Illustrator. Some common vector file formats are .dxf, .svg and STEP

Photoshop

I have decided to learn a little bit about photoshop as I have access to it. The task is to remove the background of the photo and replace it with the seaside view.

person seaside view

Steps:

Import your image with the person into photoshop
Click on the Quick selection tool and press select subject in the top
After doing that, click Select and Mask also in the top

Masking

Use the refine edge brush tool to clean up the edges on the hair. For it to be more visible you can switch the mode of background view.

view change

From output settings select Output to: Layer mask and click OK

Output change

Create a new layer and shift it below the masked layer. Call it seaside layer
Import your seaside view to your seaside layer.
Resize the subject to fit the image. and there you have it.

Final Product Image Final image

You can export the image by clicking Save As, Save as type: JPEG