You can use AVI to TGA Batch Converter to convert AVI to TGA in batch because it enables users to set the interval time when capturing images from the original AVI video file to obtain different number of images. It also supports to set the image size and quality in the batch conversion.

Please download the application via clicking here for a free trial version, and buy a single-user personal license for it if you need the unlimited function of the program. If you need some other kind of license such as multiple-user commercial license, please visit the website to purchase.

Please see the main interface of AVI to TGA Batch Converter in Figure1. You can see there is a table list used to list all the video files which need to be converted. The button "Add Image File(s)" on the left is used to add video files into the list. "Remove" button is used to delete the image file in the list. "Remove All" is for deleting all the video files. Finding all the AVI files and dragging them into the application is considered as the most convenient way to add files. You can also right click the mouse in the list and to choose "Add files" option. With "Preview Video" button, you can preview each AVI file in the list.

After adding files, please click "Options" button to open "Option" dialog box. Please see Figure 2. If you want to convert some section of each AVI file to TGA images, you can set the start time and end time in "Start (Sec)" and "End (Sec)" spin boxes and all the converted images are captured in that time slot. To change the resolution of TGA images, please set the width and height in "Size (1 to 6000)" spin box. As increasing of the value in "Quality: (0.01 to 255)" spin box, the quality of output images will be better. In "File Format" combo box, you should choose the output format as "Targa Bitmap (*.tga)". The number of output images can be controlled by the time interval in "Interval (Sec)" spin box. It means that the application captures one image per "X" second, in which X stands for the value in this spin box.

Then please click "OK" button to close "Option" dialog box and click "Convert" in Figure 1. The popup "Browse for Folder" dialog box will remind you to choose a directory for the new created TGA image files. After clicking "OK" button, the conversion will run itself. You will see all the images in the new location. Please see the conversion result in Figure3. The images converted from the same video file are named as the same prefix name and continuous number.