bitmap size image ?

Question

User632428103 posted

Hello,

I would like to know what does it mean this code :

new Image(300, 300);

Ok it will generate an image with the size in 300 px but the result will be an image of what SIZE exactly ?

In centimeter for example 

How i can know the size exactly ?

thanks 

Answer 1

User753101303 posted

Hi,

Seems you want to look at the HorizontalResolution, VerticalResolution properties to get the number of pixels for an inch. Use https://docs.microsoft.com/en-us/dotnet/api/system.drawing.bitmap.setresolution?view=netframework-4.8 if you want to change those values.

You may want to be more explicit. AFAIK this is basically just an hint that is useful or not depending on the situation. If scroling down at https://www.mydevice.io/ you'll see that some devices are lying on the "CSS pixel" (even some with fractional values) to avoid showing very small images on a high resolution display.

Answer 2

User288213138 posted

Hi jimmy69,

new Image(300, 300);

Ok it will generate an image with the size in 300 px but the result will be an image of what SIZE exactly ?

Is the Image in your code an Image class?  As far as i know, if you want to set the image size, you should try the Bitmap class.

If you wan to convert Pixels to centimeter, you can try below formula.

centimeters = pixels * 2.54 / 96

More information about convert Pixels to centimeter you can refer to this link: https://stackoverflow.com/questions/1341930/pixel-to-centimeter/23438228#23438228

Best regards,

Sam

Answer 3

User632428103 posted

Hello all,

thanks for our comment that's exactly what i want