Hi Paul,

On Tue, Aug 12, 2008 at 7:23 PM, Csanyi Pal <[EMAIL PROTECTED]> wrote:
> "David Gowers" <[EMAIL PROTECTED]> writes:
>
> Hi David,
>
>> Hi Paul,
>>
>> On Tue, Aug 12, 2008 at 6:02 PM, Csanyi Pal <[EMAIL PROTECTED]> wrote:
>
>>> I have a photo that I must to change so so the maximum Image File Size
>>> will be 62,500 bytes, the 'Image Resolution' must be 320 pixels high
>>> by 240 pixels wide, and the Image Color Depth must be 24-bit color.
>>>
>>> The Image is in JPG format now, and has 2128 pixels width, 2832 pixels
>>> hight, X-Resolution 72,000 pixels/inch and Y-Resolution 72,000
>>> pixels/inch in the Gimp.
>
>>> How can I know whether the Image has Color Depth 24-bit color?
>> If the item selected in the Image->Mode menu is 'RGB'
>
> This Image has only one layer, the background layer.
> In the Image->Mode menu 'RGB' is gray but the 'Grayscale' and
> 'Index..' aren't gray, so I can select them.
>
> But, in the Channels I can see there Red, Green, Blue and Alfa
> channel, and in the Title line of the Image window there I can see:
> ImageName.jpg-5.0 (RGB, 1 layer) 2128x2832.
>
> I think that, that this Image is RGB, right?
Yes, the title is also a good guide.
Actually, I believe the 'proper', logical way to do this is through
Image->Properties.
The 'Colorspace' property specifies whether the image is rgb, gray, or indexed.

David
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