D2: Discuss the Impact That File Format, Compression Techniques Image Resolution and Colour Depth Have on File Size and Image Quality.

2200 WordsJul 11, 20139 Pages
D2: Discuss the impact that file format, compression techniques image resolution and colour depth have on file size and image quality. In this report, I will talk about my understanding of the impact in various file format, the different compression techniques, and different resolutions and different colour depth. I will show print screens of different types of compression techniques, megapixels under image quality & resolution and three different types of colour depths. I will explain the reasons why some are larger compared to others. The format includes PSD, JPEG, TIFF, BMP and GIF. I will also go into detail why colour depths will affect the quality of the final output that the file has created. File formats: As you know, there are 5…show more content…
A disadvantage is that a single TIF format file can take up to 100 megabytes or other storage spaces. The smallest TIFF files are too large to send by email, other applications; most Web browser cannot open TIFF files. All these file formats will result will either take a lot of spaces on the RAM or maybe taken up less spaces. E.g. JPEG formats will take less space compared to other formats, whereas, GIP and PSD will take a massive spaces. Compression techniques: There are two types of compression techniques and they are named ‘lossy compression’ and ‘lossless compression’. The files can be compressed to make it smaller and each methods affect images in different ways. Therefore, the compression techniques are used to reduce the dark size of the file. Hence if the file size is reduced then there are more storage spaces. Lossy compression happens when the compression turns out in pixels and resolution is lost after compression taken places. This is why the file can be used efficiently and at a lower file size. This compression usually happens during video conferencing and during freeze frames or when an image is pixilated. This is accepted as high resolution is not needed as long as the user understands the file. Disadvantage of it is that it could give poor quality which could cause miscommunication. Lossless compression is when you compress the file and expect it to be the same as before, so the user may want

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