Wednesday, March 12, 2014

t3 LA02 - How to use a scanner

Text images


Text image 100 dpi (33 KB):        Text image 300 dpi (205 KB):         Text image 1200 dpi (2.1 MB):
    


Black and White images

B&White 100dpi (20 KB):                   B&W 300 dpi (111 KB):                B&W 1200 dpi (1.4 MB):



Text image (on paper towel)

Black & White 1200 dpi (635 KB):

   


Evaluation:

From comparison of the above scans you are able to gauge what a difference the chosen settings  makes when scanning documents. You are also able to identify the differences in file size depending on the dpi you choose.
Although a higher dpi reduces graininess it expands the file size a considerable amount. When scanning black and white images the greyscale option is both better for file size and crispness of the image.

When scanning a paper towel texture the image becomes extremely blurry but the file size remains remarkably small(ish).


*N.B MFC-250C Brother printer was used, the software 'Image Capture' only offers Text, Black & White and Colour options, therefore, Text replaced the Lineart option and Black & White replaced Greyscale.

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