In the Display Options tab you can control how the images are shown.
Enlarge small images to screen size
If selected gPhotoShow enlarges small images to fit to screen size.
Enlarge small images by no more than:
If enabled gPhotoShow won't enlarge images more than the value selected from the control on the right. It always advisable to limit enlargement of small images because if they are enlarged too much they looks grainy or fuzzy.
Enlarge only images bigger than:
You can prevent gPhotoShow from enlarging very small images by enabling this option and entering the minimum size of the pictures that you wish to be enlarged in the edit boxes on the right.
Reduce big images to screen size
If selected gPhotoShow reduces big images to fit to screen size
If Image Aspect Ratio doesn't match with Screen Aspect Ratio
In this section you set the behavior of gPhotoShow when the aspect ratio of an image doesn't match with the aspect ratio of the screen. This happens when you display a 3000x2000 picture on a 1024x768 display (3:2 picture on a 4:3 display)
Fill empty space with background color
This is the default, the original aspect ratio of the image is kept and the empty space is filled with the background color
Stretch image to fit the screen
If selected and if aspect ratio of image and screen differ, gPhotoShow will fill the screen even if the picture needs to be distorted a little. If distortion is too much the image will retain its original aspect ratio. To decide whether the image can be distorted gPhotoShow calculates the difference between the aspect ratio of the screen and the aspect ratio of the image, if it is less than the limit the image can be distorted. So the formula is: if abs((screen width/screen height)-(img width/img height))<(Limit/100) then image can be distorted. The default value for the limit is 18
Crop image to fit the screen
If selected and if aspect ratio of image and screen differ, gPhotoShow will crop the image to fill the screen. If the crop is bigger than the limit the image will not be cut. To decide whether the image can be cropped gPhotoShow calculates the difference between the aspect ratio of the screen and the aspect ratio of the image, if it is less than the limit the image can be cropped. So the formula is: if abs((screen width/screen height)-(img width/img height))<(Limit/100) then image can be cropped. The default value for the limit is 18
Show small images randomly on the screen
If selected images smaller than screen size are shown in random positions. If not selected they are always shown in the center
Automatically rotate images using Exif data (GDI+)
If selected gPhotoShow will automatically rotate images according to Exif info
Interpolation Method
Select here the interpolation method used by gPhotoShow to resample images:
Fast Bilinear : Bilinear interpolation. No prefiltering is done, this mode is not suitable for shrinking an image below 50 percent
Fast Bicubic : Bicubic interpolation. No prefiltering is done. This mode is not suitable for shrinking an image below 25 percent
Bilinear : high-quality, bilinear interpolation. Prefiltering is performed to ensure high-quality shrinking
Bicubic: high-quality, bicubic interpolation. Prefiltering is performed to ensure high-quality shrinking. This mode produces the highest quality transformed images
Enable Automatic Panoramic Images Detection
If enabled gPhotoShow will automatically detect panoramic images and will display them using the parameters in the "Panoramic Images" section. To decide whether the image is panoramic or normal gPhotoShow calculates the difference between the aspect ratio of the image and the aspect ratio of the screen, if it is greater than the limit the image is panoramic. So the formula is: if abs((img width/img height)-(screen width/screen height))>=(Limit/100) then image is panoramic. The default value for the limit is 20
Background
In this section you can choose the background color. This color is used to fill those screen parts not used by images.
Auto-Color:
If selected gPhotoShow will automatically choose the background color. gPhotoShow will choose a color to match the overall image color.
Color
Configure background color manually. gPhotoShow will always use this color.
