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When looking at a bitmap image from far away and a vector image, they will look exactly the same. A bitmap image on one hand has many different pixels, which is short for picture elements arranged on a grid. If you zoom in on a bit map image it will not look natural and will look excessively blocky. It still has those blocks on the image even when not looking at it up close. Your eyes run over the pixels and your eyes detect it as a smooth transition of color. Bitmap images are good for realistic looking images with a variety of complex shapes. Bitmap editing softwares are many in number including Adobe Photoshop. Vector images on the other hand are used for more abstract looking images such as logos. Another box to check for vector images is that it is very easy to resize the image without making the image to blocky and pixelated. The downside to vector images is that most of the time, the image is too sharp and doesn't look realistic at all. Talented artists like Yukio Miyamoto can create photorealistic images using vector graphics. It is possible to combine vector imagery and bitmap imagery, and it is possible to convert an image between the two formats. Back to vector images, each line in a vector format is described using mathematical equations with many different points with lines interconnecting all of them which is why the image appears so sharp even when zoomed in on. The most popular program for vector format editing is Adobe Illustrator.
-John Hempstead
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I've been thinking about all of the different possibilities of creations that I can conjure up on Photoshop with all of the new tools that I have learned. Before this year, I had very limited knowledge of the vast amount of content that Photoshop has to offer. I followed the instructions that were given to me with little room for improvisation and very little follow up on the tools already learned. In this class however, we learn the tools one at a time, but we learn them completely and we get a chance to experiment with them to learn what we can do with them. Art in general is a limitless subject. We as human beings will never grow tired of art because there are infinite possibilities especially now in the digital age where we can do more things than ever thanks to computers. A lot of the time, I just experiment with my tools and different modes and things like that. Even if I don't find out the most efficient way to do something with more advanced tools, there's almost always a way to do the same thing with simpler tools.
-John Hempstead Destructive and Non-destructive editing are different ways of editing an image. The most common type of editing is destructive editing. In Photoshop, this involves using the brush tool, eraser tool, or any other tool that edits the image on the same layer as the image. It is called destructive editing because if you make these changes, save the image, and restart Photoshop, those changes will be permanently on the image and cannot be removed. The original state of the pixels is destroyed and therefore called destructive editing. For many years it was the only way to edit an image. Adobe Photoshop is considered to be a destructive editing application because most of the tools shown to you are destructive tools. It is possible to use Photoshop in such a way that allows non-destructive editing, but it requires more knowledge of Photoshop to do so with tools such as layer mask. Non-destructive editing is much different and isn't as simple as editing that doesn't permanently change the image. When you make changes, the software will create a new file linked to the original image called a sidecar file. A sidecar file is nothing more than a text file that contains instructions that tell the software how to change the original image. The software will show you a real time view of what the image will look like if and when you chose to apply the changes. You can reverse these changes or tweak them to your satisfaction. Once you are done editing, you export the copy of the image. This way, you have two copies of the image: the original and the modified version. The original version still has the sidecar files as nothing more than a list of instructions that aren't applied so you can go back to any of your previous states even after you close the program. This is the huge advantage for non-destructive over destructive editing. Examples include Adobe Lightroom and Adobe Camera Raw.
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-John Hempstead |
AuthorMy name is John Hempstead and this is my blog that will be showcasing what I have learned throughout my time in Fundamentals of Design and Animation. Archives
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