Downloading images in .NET

Creating QR in .NET Downloading images

Downloading images from Google Images or from the pages that contain the images is easy enough, but before you do so, please see the sidebar Who owns those pictures, anyway Depending on your computer s operating system, you can probably drag-anddrop images to your computer For example, if your computer runs Windows XP, you can drag-and-drop images from the Image Results page to your Windows desktop or to a folder within Windows Explorer

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If you have trouble dragging and dropping the image, right-click on the image and choose Save Picture As from the context menu

No doubt, you have heard of content filtering, software tools that prevent inappropriate content from crossing your desktop depending on your preferences Although the issue of content filtering is something you may want to consider in all your Google research endeavors, it is specifically and uniquely important to consider when you are conducting a search of images because images can be more viscerally offensive than other kinds of content Google uses a content filter called SafeSearch SafeSearch is designed to remove adult content from Google search results You can use this filter not only with Google Images searches but also with Google searches in general You can set SafeSearch options by clicking the Preferences link on any Google page or by clicking the special link at the top of any Google Images search results page The link text varies depending on your current SafeSearch settings You can also set these preferences on a per-search basis when you adjust the setting in the Advanced Image Search window (see Using Advanced Image Search ) There are three possible SafeSearch settings: Do not filter my search results: SafeSearch is disabled Use moderate filtering: The filter excludes adult images but not text (this is the default setting) Use strict filtering: The filter excludes adult images and explicit text The SafeSearch filters don t always work very well with Google Images One reason for this is that image searching based on contextual language rather than images themselves is by nature imprecise Even if you have the SafeSearch filter turned on, results may sometimes include adult imagery so you may wish to take appropriate precautions if you are searching with children present or while at the office

The Advanced Image Search window, shown in Figure 8-4, provides a way for you to refine your image searches

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The upper portion of the Advanced Image Search window (outlined in blue) provides a way to refine image queries It looks similar to the Advanced Search window you see when you want to make adjustments to a general Google search The lower portion of the window lets you make some Google Images specific search refinements; for example, you can determine which file types you want to include in your search See Table 8-1 for a complete list of refinements This table also shows related operators that can be used in Google Images searches You can adjust any of these categories shown in the table by selecting options from the related drop-down lists Google Images only returns pictures whose properties match the option value

Table 8-1

Any Size, Small, Medium, or Large Any filetype, jpg, gif,

Choose Any Size if you don t care how big or small an image is filetype:any allows you to search all image filetypes

(continued)

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Part II: Crafting Queries and Using the Google Research Tools Table 8-1 (continued)

Coloration Can be set to any colors, black and white, grayscale, or full color Domain Any domain name

If your research requires a certain type of coloration, you can limit your search to some degree site:edu limits your search to images on sites designated as schools or universities