Images are used to illustrate or enhance lesson content, which increases student retention. Images can be used alone or in conjunction with text. There are many ways to enhance images by changing the following:
Bit depth
File formats
Extensions
Bit Depth
Bit depth refers to the color information stored in an image. The higher the bit depth of an image, the more colors it can store. The simplest image, a 1 bit image, can only show two colors, black and white. That is because the 1 bit can only store one of two values, 0 (white) and 1 (black). An 8 bit image can store 256 possible colors, while a 24 bit image can display about 16 million colors. A 32-bit is used for hi-resolution files that include an alpha layer for transparency.
File Formats
"Vector" and "Bitmap" are two different file formats that are commonly used
Vector images are based on mathematical formulas and can be scaled without any loss of quality. Vector drawings are usually pretty small files because they only contain data about the Bézier curves that form the drawing.
Bitmapimages are exactly what their name says they are: a collection of bits (pixels) that are mapped in a grid to form a picture. Bitmaps are resolution dependent. Because bitmaps are resolution dependent, it's difficult to increase or decrease their size without sacrificing a degree of image quality.
File Types File formats used for bitmap data :
BMP: an outdated and limited file format that is not suitable for use in prepress. EPS: a flexible file format that can contain both bitmap and vector data. It is gradually being replaced by PDF. GIF: mainly used for internet graphics JPEG: or rather the JFIF file format, which is mainly used for internet graphics PDF: versatile file format that can contain just about any type of data including complete pages, it is not yet widely used to exchange just images PICT: a file format that can contain both bitmap and vector data but that is mainly used on Macintosh computers and is not very suitable for prepress. PSD: the native file format of Adobe Photoshop (which can also contain vector data such as clipping paths)
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File formats used for vector data:
EPS: the most popular file format to exchange vector drawings even though PDF is quickly gaining ground. PDF: a versatile file format that can contain just about any type of data including complete pages. PSD: the native file format of Adobe Photoshop. AI: the native file format of Adobe Illustrator.
These file formats are a few examples that allow your images files to be an editable original. .psd .acorn .bmp
These file formats are a few examples that allow your images files to be published online. .gif .jpeg .png
Extensions
File formats/extensions usually used:
The primary graphic web file formats are GIF, JPEG, and PNG. All three file formats are bitmap graphics. They are also compressed to keep file sizes as small as possible, allowing for easier transport over the internet. Most websites include both GIF and JPEG images. GIF files incorporate a “lossless” compression scheme to keep file sizes at a minimum without compromising quality. However, GIF files are 8-bit graphics and can only accommodate 256 colors, which works well for graphics, logos, etc. JPEG images are full-color images that include at least 24 bits. JPEG images are used for those whom image quality and color fidelity is important.
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How to Capture an Image from the Web Screenshot Capture
Command + Shift + 4
Cross symbol appears.
Click and drag to capture the image or area of the screen you wish to capture.
The screenshot or image saves to your desktop.
How to Capture an Image from Notation Software Screenshot Capture or .EPS To export a high-quality image from notation software, one may use the above steps or save the file as an .eps or graphics page. This file may then be imported into a document or other program. Quicktime screen videos are also useful for combining screenshots and adding your own vocal notes (this is how you might create a tutorial for students).
Online Image Resources The following sites can be used to search for images Visual Hunt - public domain music photos freepik - free music vectors and photos 123rf - royalty free stock photos with a paid subscription. Google Images
Image Assignments
TI:ME 2B
This music notation collage was created during TI:ME 2B in the summer of 2019 using Affinity Designer. It will be used as an example for a notational elements scavenger hunt activity with 3rd-5th grade students.
These are some logos that I made (also using Affinity Designer).