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<blockquote data-quote="kiwijunglist" data-source="post: 497715" data-attributes="member: 76888"><p>It would be good if there was a user adjustable combined step wise stretch, non linear stretch, crop/zoom mode</p><p></p><p>Say for instance you have a 16x9 display (= 1.778x1) and you have the follow steps defined</p><p>Step 1. Maximun non linear stretch % = 5%</p><p>Step 2. Maximun zoom/crop % = 5%</p><p></p><p><strong>Example widescreen 2.39x1 video is displayed.</strong></p><p>Step 1 -> Vertical element is non linear stretched by 5% = 2.39x1.05 = 2.28x1</p><p>Step 2 -> Horizontal element is croped by 5% = 2.16 x 1 = 16x7.4,</p><p>Basically this means the video is slightly stretched and slightly cropped with much smaller horizontal black bars than if the original 'normal' mode was used.</p><p>With the current stretch or non linear stretch this makes the video look too stretched.</p><p></p><p><strong>Example widescreen 1.85x1 video is displayed</strong></p><p>Step 1 -> Vertical element is non linear stretched by 5% = 1.85x1.05 = 1.76x1 = approx 16x9</p><p></p><p><strong>Example old style 4x3 video is displayed</strong></p><p>Step 1 -> Horizontal element is non linear stretched by 5% = 4.2x3</p><p>Step 2 -> Vertical element is cropped by max 5% = 4.2x2.85 = 4.42x3 = 13.26x9, so basically you get some vertical black bars. I find with non linear stretch in this situation its over stretched</p><p></p><p>The crop/zoom should also have a condition ie don't crop if resolution<400, because if you have very low res video then every pixel counts, so you don't want to do any cropping or zooming.</p><p></p><p>This mode would have the advantages of some smart non linear stretched, but be limited so it doesn't get too carried away. If you were making this even more advanced for cropping you could specify to crop more from bottom than the top. You could also do a Step 0, remove any letterboxing, but that would be cpu intensive. also you could add a step 3, a bit more stretching if the pic still wasn't wide/tall enough after the crop/zoom step.</p><p></p><p>I hope you understand how much more powerful this would be and also how much it would result in less picture distortion, it's hard to explain via typing.</p></blockquote><p></p>
[QUOTE="kiwijunglist, post: 497715, member: 76888"] It would be good if there was a user adjustable combined step wise stretch, non linear stretch, crop/zoom mode Say for instance you have a 16x9 display (= 1.778x1) and you have the follow steps defined Step 1. Maximun non linear stretch % = 5% Step 2. Maximun zoom/crop % = 5% [B]Example widescreen 2.39x1 video is displayed.[/B] Step 1 -> Vertical element is non linear stretched by 5% = 2.39x1.05 = 2.28x1 Step 2 -> Horizontal element is croped by 5% = 2.16 x 1 = 16x7.4, Basically this means the video is slightly stretched and slightly cropped with much smaller horizontal black bars than if the original 'normal' mode was used. With the current stretch or non linear stretch this makes the video look too stretched. [B]Example widescreen 1.85x1 video is displayed[/B] Step 1 -> Vertical element is non linear stretched by 5% = 1.85x1.05 = 1.76x1 = approx 16x9 [B]Example old style 4x3 video is displayed[/B] Step 1 -> Horizontal element is non linear stretched by 5% = 4.2x3 Step 2 -> Vertical element is cropped by max 5% = 4.2x2.85 = 4.42x3 = 13.26x9, so basically you get some vertical black bars. I find with non linear stretch in this situation its over stretched The crop/zoom should also have a condition ie don't crop if resolution<400, because if you have very low res video then every pixel counts, so you don't want to do any cropping or zooming. This mode would have the advantages of some smart non linear stretched, but be limited so it doesn't get too carried away. If you were making this even more advanced for cropping you could specify to crop more from bottom than the top. You could also do a Step 0, remove any letterboxing, but that would be cpu intensive. also you could add a step 3, a bit more stretching if the pic still wasn't wide/tall enough after the crop/zoom step. I hope you understand how much more powerful this would be and also how much it would result in less picture distortion, it's hard to explain via typing. [/QUOTE]
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